Post-Traumatic Stress Disorder (PTSD) is often caused by a traumatic event where there is actual or threatened serious injury, death, or sexual violence. This can be an event you experienced yourself, something that you witnessed or heard about.
Heightened startle response
Avoidance of emotions or thoughts about the trauma
Avoidance of people or situations that remind one of the trauma
Memory issues related to the event
Negative thoughts or beliefs about self and others
Feelings of horror, sadness, shame
Loss of interest in events that were once enjoyable
Feeling isolated, detached, and alone
Difficulty falling or staying asleep
There is now a dissociative specifier for PTSD. This includes feelings of depersonalization and derealization. Depersonalization is a feeling of disconnection from self, whereas derealization is a feeling of disconnection from the world. See our page on Depersonalization/Derealization for more information.