How do I know if I have trauma or PTSD?
Last reviewed: May 2026
Trauma is not defined by what happened to you — it is defined by the impact that experience continues to have on your nervous system and your life. Two people can have similar experiences and have entirely different responses; that is not a reflection of strength or weakness. It is a reflection of how individual nervous systems process and store overwhelming events.
Signs of trauma
Post-Traumatic Stress Disorder (PTSD) is the most formally recognized trauma-related diagnosis. Its core features include intrusion symptoms (flashbacks, nightmares, or intrusive memories that feel involuntary and vivid), avoidance of people, places, thoughts, or feelings associated with the traumatic event, negative changes in thoughts and mood (persistent guilt, shame, emotional numbness, estrangement from others), and hyperarousal (being on constant alert, an exaggerated startle response, difficulty sleeping, irritability, or angry outbursts).
However, many people who have experienced trauma do not meet the full criteria for PTSD and still carry significant trauma-related distress. Complex PTSD (C-PTSD) is increasingly recognized as a distinct presentation that develops after prolonged, repeated trauma — particularly in relationships or contexts where escape was not possible (childhood abuse, domestic violence, long-term emotional neglect). C-PTSD shares PTSD's core features but adds significant difficulties with emotional regulation, a deep disruption in self-perception, and pervasive difficulties in relationships.
How trauma shows up beyond the obvious symptoms
Trauma does not always announce itself clearly. Many people who carry unprocessed trauma experience it as chronic anxiety, difficulty trusting others, patterns of self-sabotage, intense emotional reactions that feel disproportionate, physical symptoms without clear medical cause, or a pervasive sense of being fundamentally different or broken.
If you find yourself avoiding certain situations, relationships, or memories with an intensity that limits your life; if you have emotional reactions that feel like they "belong" to a past moment rather than the present; or if you feel chronically disconnected from your body, your emotions, or the people around you — these are all worth exploring with a trauma-informed therapist.
How trauma is treated
Trauma responds well to evidence-based therapy. EMDR (Eye Movement Desensitization and Reprocessing) has the strongest evidence base for PTSD and trauma processing; it helps the brain reprocess stored traumatic memories so they lose their intrusive, activating quality. Trauma-focused Cognitive Behavioural Therapy (TF-CBT) and somatic-based approaches are also well-supported. The first step does not require you to re-tell your trauma in detail — a good trauma therapist will work at a pace that is safe for your nervous system.