Post Traumatic Stress Disorder (PTSD) - Symptoms, causes, diagnosis and treatment. Post Traumatic Stress Disorder of PTSD is a mental health disorder that is triggered by a frightening or scary event or incident either by experience or witnessing it. Symptoms may be taken as flashbacks, nightmares and severe anxiety, as well as uncontrollable thoughts about that incident. Most people who witnessed traumatic events may have temporary difficulty in adjusting for the situation and coping it, but as the time gets passed and good self care, they usually get better. If the symptoms gets worse, they will last for weeks, months or even years, and interfering into the day to day life, then you may have caught with PTSD. * Getting effective treatment after PTSD symptoms develop can be critical to reduce symptoms and improve functions. Symptoms of PTSD - Post Traumatic Stress Disorder symptoms may start within one month of a traumatic or painful incident, but sometimes symptoms may not ap