Most people experience feelings of anxiety before an important event such as a big exam, a business presentation, wedding or some other big event. Anxiety disorders, however, are illnesses that fill people's lives with overwhelming anxiety and fear that are chronic, unremitting, and can grow progressively worse. Tormented by panic attacks, obsessive thoughts, flashbacks of traumatic events, nightmares, or countless frightening physical symptoms, some people with anxiety disorders even become housebound or lose functionality to some extent.
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