This section is adapted from the Anxiety and Depression Association of America website.
Panic disorder is diagnosed in people who experience spontaneous seemingly out-of-the-blue panic attacks and are preoccupied with the fear of a recurring attack. Panic attacks occur unexpectedly, sometimes even during sleep. About six million American adults experience panic disorder in a given year. Typically developing in early adulthood, women are twice as likely as men to have panic disorder. Many people don’t know that their disorder is real and highly responsive to treatment. Some are afraid or embarrassed to tell anyone, including their doctors and loved ones, about what they experience for fear of being considered a hypochondriac. Instead they suffer in silence, distancing themselves from friends, family, and others who could be helpful or supportive. The disorder often occurs with other mental and physical disorders, including other anxiety disorders, depression, irritable bowel syndrome, asthma, or substance abuse. This may complicate of getting a correct diagnosis.