What is posttraumatic stress disorder (PTSD)?

You feel on edge. Nightmares keep coming back. Sudden noises make you jump. You’re staying at home more and more. Could you have posttraumatic stress disorder (PTSD)?

If you have experienced severe trauma or a life-threatening event — whether during a time of war or in a noncombat situation — you may develop symptoms of posttraumatic stress, or what is commonly known as PTSD. Maybe during the event you felt as if your life or the lives of others were in danger or that you had no control over what was happening. While in the military, you may have witnessed people being injured or dying, or you may have experienced physical harm yourself.

Some of the most common symptoms of PTSD include recurring memories or nightmares of the event, sleeplessness, loss of interest, and feelings of numbness, anger or irritability, or being constantly on guard, but there are many ways PTSD can impact your everyday life. Sometimes these symptoms don't surface for months or even years after the event occurred or after returning from deployment. They may also come and go. If these problems persist or they're disrupting your daily life, you may have PTSD.