Psychological Symptoms Of Post Traumatic Stress Disorder . Post-traumatic stress disorder is a mental health disorder that can be triggered by traumatic events. Symptoms include reliving the trauma through Post-Traumatic Stress Disorder (PTSD): Understanding PTSD Symptoms and Causes. Post Traumatic Stress Disorder (PTSD - The Reynolds Clinic LLC (Erik Moreno) Frequency of post-traumatic stress disorder among relief force workers after the tsunami in Asia: do rescuers become victims? Someone with PTSD often relives the traumatic event through nightmares and flashbacks, and It's often more severe if the trauma was experienced early in life, as this can affect a child's development. It may be necessary to distinguish PTSD from traumatic or complicated grief reactions that may develop a year or more after a bereavement, with symptoms of intense, intrusive thoughts. In acute stress disorder, the hyperarousal and intrusive symptoms last between two days and...