When you experience a threatening or traumatic event, your nervous system responds by triggering the fight, flight, or freeze response. After the danger passes, your body usually returns to normal. But if the upset doesn't fade and you feel stuck with painful memories and a constant sense of vulnerability, you may be suffering from post-traumatic stress disorder (PTSD). As upsetting and disabling as PTSD can be, it is important to realize that you’re not helpless. There are plenty of things you can do to alleviate your PTSD symptoms, reduce anxiety and fear, and take back control of your life.

PTSD develops differently from person to person because everyone's nervous system and tolerance for stress is a little different. While you’re most likely to develop symptoms of PTSD in the hours or days following a traumatic event, it can sometimes take weeks, months, or even years before they appear. There are three main types of symptoms:

Re-experiencing the traumatic event

You may experience upsetting memories, flashbacks, and nightmares, as well as feelings of distress or intense physical reactions when reminded of the event (sweating, pounding heart, nausea, for example).

Avoiding reminders of the trauma

You may try to avoid activities, places or thoughts that remind you of the trauma or be unable to remember important aspects of the event. You may feel detached from others and emotionally numb, or lose interest in activities and life in general, sensing only a limited future for yourself.

Increased anxiety and emotional arousal

You may experience trouble sleeping, irritability or outbursts of anger, have difficulty concentrating, be jumpy and easily startled, and feel hyper vigilant (on constant ‘alert’).