Causes
In many cases, agoraphobia develops after a person has experienced a panic attack (panic disorder). This involves feelings of intense, overwhelming terror along with physical symptoms such as sweating, dizziness, a pounding heart, and shortness of breath. Although panic attacks are unpredictable, the person learns to avoid the situation that seemed to trigger the episode for fear of having another one. Others may just feel uncomfortable in agoraphobic situations without ever having had, or going on to have, panic attacks. A few will go on to develop full-blown panic disorder. Agoraphobia is more common than panic disorder, which only affects about 1% of the population.