Trauma and PTSD

Plain-language answers from the knowledge library of Heal with Irene, the practice of Dr. Irene Behnan, Clinical Psychologist. Browse and search the full library.

Trauma & PTSD

What actually counts as trauma?

Trauma refers to any event that involves a real or perceived threat to your life or physical safety, and it can range from accidents and violence to abuse, sudden loss, or other deeply distressing experiences. The impact of an event matters more than how it might look from the outside, two people can experience the same event and be affected very differently.

What's the difference between having a trauma response and having PTSD?

Almost everyone who goes through a traumatic event has some kind of response afterward, hypervigilance, low mood, anxiety, trouble sleeping, and this is considered a normal reaction to an abnormal situation. PTSD is diagnosed when a cluster of these symptoms persists, typically beyond a month, and significantly interferes with daily life.

What are the main symptoms of PTSD?

Symptoms generally fall into a few groups: re-experiencing (flashbacks, nightmares, intrusive memories), avoidance (steering clear of reminders or feeling emotionally numb), and increased arousal (being easily startled, irritability, trouble sleeping, feeling constantly on edge). You don't need every symptom in every category for it to be PTSD, usually just a few from each are enough to warrant a closer look.

What's a flashback, really?

A flashback is when it feels like the traumatic event is happening again right now, rather than being remembered as something in the past, sometimes with the same physical sensations, like a racing heart or sweating, as the original event. This is different from just remembering something upsetting; it can feel like your mind and body temporarily lose track of time.

Why do I feel jumpy or on edge all the time since my trauma?

This is a hallmark symptom called hyperarousal, your nervous system stays on high alert even when there's no active danger, which can show up as being easily startled, irritable, or unable to relax. It's exhausting, but it's a very recognized and treatable part of trauma responses, not a personal weakness.

Why do I feel emotionally numb after something traumatic happened?

Emotional numbness is a common avoidance symptom, your mind can shut down certain feelings as a protective measure, especially when the original emotions felt too overwhelming to fully experience. It's a way the brain tries to keep you functioning, even though it can feel isolating or confusing from the inside.

Can trauma cause physical symptoms even years later?

Yes, trauma is stored in the body as well as the mind, and people can experience racing heart, muscle tension, digestive issues, or chronic tension long after the event, especially when reminded of it. This is part of why trauma treatment often includes body-based approaches, not just talking about what happened.

Why can't I just move on from something that happened so long ago?

Trauma doesn't follow a simple timeline, without treatment, its effects can persist indefinitely, sometimes for a lifetime, regardless of how much time has passed. This isn't about willpower or trying hard enough; it reflects how trauma actually gets stored and processed (or not processed) in the brain and nervous system.

Can childhood experiences cause trauma symptoms as an adult?

Yes, childhood trauma can shape core beliefs like "the world isn't safe" or "I have no control," and these beliefs can quietly influence relationships, self-esteem, and reactions well into adulthood, even if the original events feel like distant memories. Recognizing the throughline between childhood experiences and current struggles is often a key part of trauma-focused therapy.

Why do I think everything is my fault, even things I couldn't control?

This is a very common trauma-related belief, "it was my fault, I should have known", and it often develops as the mind's way of trying to create a sense of control over something that was actually completely outside your control. It feels logical in the moment, but it's usually a distortion trauma creates, not an accurate reflection of what actually happened or who was responsible.

Can trauma affect how I trust people in relationships?

Yes, one of the common belief shifts after trauma is "people can't be trusted," which can make forming or maintaining close relationships feel much harder, even with people who've done nothing to earn that mistrust. This is a recognized pattern in trauma recovery work, and it can shift with the right therapeutic support over time.

Does PTSD ever go away completely?

Recovery timelines vary a lot, some people see significant improvement within about six months, while others carry symptoms much longer, especially without treatment. Importantly, PTSD is treatable at any stage; it's genuinely never "too late" to start addressing it, even if the trauma happened years or decades ago.

What treatments actually help with trauma and PTSD?

Several trauma-focused therapies have strong evidence behind them, including Trauma-Focused Cognitive Behavioral Therapy (TF-CBT), EMDR (Eye Movement Desensitization and Reprocessing), and prolonged exposure therapy, typically over a course of roughly 8 to 16 sessions. A trauma-informed therapist can help determine which approach fits your specific situation best.

How do I know if I should see someone about possible trauma?

If you're experiencing ongoing flashbacks, nightmares, avoidance of reminders, emotional numbness, or a constant sense of being on edge, especially if it's been going on for more than a month and is affecting your daily life, that's a strong sign it's worth talking to a trauma-informed therapist. Early support tends to make recovery smoother, but there's no expiration date on when it's "too late" to seek help.

Advanced trauma research and mechanisms

Why does my body react to certain triggers before I even consciously realize what's happening?

This is explained by Polyvagal Theory, developed by neuroscientist Dr. Stephen Porges, which describes the autonomic nervous system as operating through a hierarchy of three evolutionarily-ordered response states, each governed by a different branch of the vagus nerve. When your body perceives safety, the newest circuit, the ventral vagal "social engagement system", stays active, supporting calm connection with others. When that fails to resolve a threat, the system drops to the next-oldest circuit, sympathetic activation (fight or flight); and if that also fails, it falls back to the oldest circuit of all, dorsal vagal shutdown, immobilization, numbness, or dissociation. Critically, this entire cascade is designed to happen automatically and rapidly, often faster than conscious thought, which is exactly why trauma reactions can feel like they're happening "to" you rather than being something you're choosing.

Why do some people freeze or shut down during a traumatic event instead of fighting or running?

According to Polyvagal Theory, dorsal vagal shutdown is the nervous system's oldest and most primitive survival strategy, reserved for situations where fight or flight isn't possible or hasn't worked, it's shared evolutionarily with reptiles and produces immobilization, numbness, and sometimes dissociation. Porges himself has emphasized that this response should be understood not as weakness or failure, but as the body's way of saying "we're not going there again", an adaptive strategy that, at least in the moment, is protecting the person, even though it can feel disturbing or shameful afterward.

Why does my nervous system still react to danger long after the traumatic situation is actually over?

Research describes PTSD symptoms as potentially reflecting a retuned autonomic nervous system following extreme or repeated threat exposure, meaning the nervous system doesn't simply return to its prior baseline after trauma, it recalibrates itself to stay more defensively activated, with reduced access to the calming, socially-connected ventral vagal state. Porges frames this directly: "trauma is not the event itself, it's our body's reaction to the event", the ongoing symptoms reflect this retuning, not a memory problem alone.

What is "neuroception," and why does it matter for understanding trauma reactions?

Neuroception is a specific term Porges introduced to describe a neural process, distinct from conscious perception, that automatically evaluates environmental and internal bodily cues as safe, dangerous, or life-threatening, entirely beneath conscious awareness. This explains why a trauma survivor can react intensely to something that seems harmless to everyone else in the room; their neuroception system, not their rational mind, is making a split-second safety assessment based on past threat, and it can misfire.

Why do neutral things, a tone of voice, a smell, a certain room, sometimes trigger an intense reaction in trauma survivors?

Trauma survivors often experience distorted neuroception, meaning the nervous system starts interpreting genuinely neutral or safe cues (a neutral facial expression, an unfamiliar space, a sudden sound) as threatening, because the system has been recalibrated toward heightened vigilance following past danger. This is described in Polyvagal Theory as a "physiological legacy of past threat" rather than as a cognitive error or overreaction, the body is running an old threat-detection program in a new, actually-safe context.

If my reactions are happening below conscious awareness, how does trauma therapy actually help?

Polyvagal-informed treatment reframes the therapeutic goal specifically around retuning autonomic state rather than relying only on cognitive insight, the theory holds that effective intervention requires altering the autonomic context through co-regulation, environmental safety cues, and physiological regulation, not simply reasoning your way out of a threat response. In practice, this looks like therapists deliberately using calm tone of voice, predictable pacing, and a felt sense of physical safety in the room to help shift a client's nervous system state before deeper processing work begins.

Why do I remember a traumatic event so vividly in fragments, but can't recall the full sequence of what happened?

This is explained by a specific neurobiological model of traumatic memory involving the amygdala and hippocampus. Under high emotional arousal, the amygdala, which processes the emotional intensity of the experience, begins to actively suppress hippocampal function, the brain structure normally responsible for consolidating a coherent, contextualized memory. Beyond a certain threshold of stimulus intensity, the amygdala increasingly becomes the primary site of memory storage, while the hippocampus's role in encoding the surrounding context (time, sequence, location) gets increasingly suppressed, this produces exactly the pattern trauma survivors often describe: intensely vivid emotional or sensory fragments without a clear, orderly narrative.

Does this mean my traumatic memory is somehow less "real" or accurate because it's disorganized?

Not at all, research describes traumatic memory as often stronger than memory for non-traumatic events, but decontextualized from ordinary autobiographical memory, meaning the emotional core of the memory can be extremely vivid and accurate while the surrounding contextual details are genuinely less well-encoded due to the amygdala-hippocampus interaction described above. This is a structural feature of how the brain encodes overwhelming experience, not a sign that the memory or the person's experience of it is unreliable.

Why does it feel like the traumatic event is still happening now, instead of being safely in the past?

This directly maps onto the "re-experiencing" symptom cluster in current diagnostic frameworks for PTSD, which is specifically defined as reliving the traumatic event in the here and now rather than remembering it as something that happened previously. Combined with the amygdala's role in decontextualized memory storage, this creates a memory that isn't well-anchored in "this happened then," and can resurface with the same emotional intensity as if it were happening in the present moment.

Is Complex PTSD an actual, distinct diagnosis, or just a more severe version of regular PTSD?

It's formally recognized as a distinct, separate diagnosis under the World Health Organization's ICD-11 classification system, alongside standard PTSD, as of 2018, a person can be diagnosed with one or the other, but not both simultaneously. Research supports this distinction: complex PTSD is associated with significantly greater functional impairment than standard PTSD, and studies across multiple countries and cultures have consistently found that the two conditions form separable symptom profiles, not simply different points on the same severity scale.

What makes Complex PTSD different from standard PTSD, symptom by symptom?

Complex PTSD requires all three of the core PTSD symptom clusters (re-experiencing the trauma in the present, avoidance of reminders, and a persistent sense of current threat), plus three additional clusters called "disturbances in self-organization": affective dysregulation (extreme emotional reactivity, self-destructive behavior, or dissociation under stress), negative self-concept (persistent beliefs about being worthless, defeated, or a failure, often with deep shame or guilt), and disturbances in relationships (significant difficulty sustaining closeness or emotional intimacy with others). Crucially, these disturbances are pervasive across contexts and relationships, not just triggered near specific trauma reminders the way core PTSD symptoms are.

Does Complex PTSD only happen after childhood abuse, or can other experiences cause it too?

While Complex PTSD is most strongly associated with prolonged, repeated, or inescapable trauma, such as childhood abuse, domestic violence, torture, or captivity, the current ICD-11 diagnostic framework defines it purely by symptom profile, not by the specific type of trauma exposure. This means chronic trauma is a strong risk factor for developing Complex PTSD rather than a strict requirement, and in principle it's possible (though less common) for the symptom pattern to emerge after a single traumatic event as well.

Why do I feel fundamentally "defective" or ashamed, not just anxious, after my trauma?

This maps directly onto the negative self-concept component of Complex PTSD's diagnostic criteria, which specifically describes persistent beliefs about oneself as diminished, defeated, or worthless, often accompanied by pervasive shame or guilt connected to the trauma. This is recognized as a core, diagnosable feature of prolonged relational trauma specifically, not simply low self-esteem or a character flaw, but a documented psychological consequence of the kind of trauma that shapes identity itself.

How does EMDR, the therapy that uses eye movements, actually treat trauma? It sounds strange.

EMDR is guided by a specific theoretical framework called the Adaptive Information Processing (AIP) model, developed by Francine Shapiro, which proposes that psychological symptoms result from traumatic memories that were inadequately processed and stored in a dysfunctional, isolated way in the brain at the time they occurred. The model hypothesizes that these poorly processed memories create obstacles to the kind of rational, integrative processing normally handled by the prefrontal cortex, and that the bilateral stimulation used in EMDR (like guided eye movements) helps remove those obstacles, allowing the memory to finally be processed and stored in a more adaptive, less distressing way.

Does EMDR actually have real scientific support, or is the eye-movement part just a gimmick?

There is meaningful research support, a review of 20 controlled outcome studies found EMDR to be an efficacious and efficient treatment for PTSD. Later research has specifically investigated the mechanisms behind why it works, including physiological changes that occur during treatment, and several complementary theoretical models have emerged to help explain the process further, generally reinforcing rather than contradicting Shapiro's original model.

Is EMDR essentially the same thing as exposure therapy, just with eye movements added?

No, the AIP model specifically distinguishes EMDR from extinction-based exposure therapies. In EMDR, the targeted memory is theorized to actually transmute or change during processing and then gets re-stored through a process called reconsolidation, rather than the goal being simply to reduce a fear response through repeated exposure without changing the memory itself. This is considered a meaningfully different mechanism of change, even though both approaches directly engage with the traumatic memory rather than avoiding it.

Why can't I just think my way out of my trauma responses, no matter how hard I try?

Polyvagal Theory explicitly reframes trauma symptoms as adaptive expressions of autonomic nervous system state rather than evidence of cognitive or emotional failure, meaning the dysregulation isn't a failure of willpower, effort, or insight, but a survival adaptation rooted in physiology. Because the root issue is physiological state, not conscious belief, healing is described as requiring a shift in autonomic state itself, achieved through co-regulation, environmental safety, and physiological regulation techniques, rather than relying solely on top-down cognitive reinterpretation.

What actually is "co-regulation," and why does connecting with another person help calm a traumatized nervous system?

Co-regulation refers to the process by which one nervous system helps another return to a calmer, safer state through cues of connection, facial expression, tone of voice, physical presence, and it's considered central to how the ventral vagal social engagement system gets re-activated after a threat response. Porges notes this is exactly why community, peer support, and safe relationships matter so much in trauma recovery: an isolated nervous system has a much harder time finding its way back to safety than one supported by co-regulating connection with others.

What are some concrete, physiologically-grounded techniques that can help calm a trauma response in the moment?

Polyvagal-informed strategies focus on directly engaging the vagus nerve and increasing cues of safety: diaphragmatic (slow belly) breathing, gentle rhythmic movement like rocking or swaying, humming or soft vocalization, and reducing environmental cues associated with threat (loud or low-frequency sounds, harsh lighting). These aren't just relaxation tips, they're specifically chosen because they directly target the physiological pathways Polyvagal Theory identifies as capable of shifting the body from a defensive state back toward ventral vagal calm and connection.