Characterized by a suite of symptoms that persist for at least three days and up to one month after a traumatic experience (same diagnostic criteria for "trauma" as listed above). The specific symptoms of the disorder vary across individuals, but a common feature is intense anxiety in response to re-experiencing symptoms (e.g., recurrent intrusive recollections of traumatic event) of the trauma.

People who have had a panic attack in certain situations may develop irrational fears, called phobias, of these situations and begin to avoid them. Eventually, the pattern of avoidance and level of anxiety about another attack may reach the point where individuals with panic disorder are unable to drive or even step out of the house. At this stage, the person is said to have panic disorder with agoraphobia.


Panic attacks are extremely unpleasant and can be very frightening. As a result, people who experience repeated panic attacks often become very worried about having another attack and may make changes to their lifestyle so as to avoid having panic attacks. For example, avoiding exercise so as to keep their heart rate low, or avoiding certain places.
Not everyone who worries a lot has an anxiety disorder. You may be anxious because of an overly demanding schedule, lack of exercise or sleep, pressure at home or work, or even from too much caffeine. The bottom line is that if your lifestyle is unhealthy and stressful, you’re more likely to feel anxious—whether or not you actually have an anxiety disorder. These tips can help to lower anxiety and manage symptoms of an anxiety disorder:
People with panic disorder often worry about when the next attack will happen and actively try to prevent future attacks by avoiding places, situations, or behaviors they associate with panic attacks. Worry about panic attacks, and the effort spent trying to avoid attacks, cause significant problems in various areas of the person’s life, including the development of agoraphobia (see below).
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