Generalized Anxiety Disorder (GAD)
About 3 to 4 percent of the American population suffers from GAD. GAD generally comes on gradually, sometimes beginning as early as childhood or adolescence, and symptoms can diminish with age. GAD sufferers chronically worry, and what they worry about is out of proportion to the actual events in their lives. They typically have a feeling that something bad is going to happen, and their constant worries and fears distract them from their day-to-day activities. They worry and feel anxious nearly all of the time, though they may not even know why.
People with GAD usually have sleep disorders and have difficulty relaxing. Some physical symptoms are fatigue, insomnia, restlessness, and stomach upset. People with GAD are often less impaired than sufferers of other anxiety disorders