Post Traumatic Stress Disorder.
Post-traumatic stress disorder (PTSD) is a mental health issue that develops after a distressing event. The traumatic event may have happened to you, or you may have seen it happen to someone else. It’s normal to feel upset after something like that happens. You may have trouble sleeping, eating or doing things you enjoy for a little while. But for PTSD to be diagnosed, your symptoms last longer than a few months and interfere with your life.