Feeling anxious is a normal short-term reaction to stressors such as a looming deadline or a broken car. But when the feeling lasts for more than 6 months and starts to affect your daily life and normal behavior, it can well grow into a generalized anxiety disorder (GAD).
The psychological symptoms of the disorder include fatigue, panic attacks, negative thoughts, lack of focus, low self-esteem, unexplainable fear, and others. The physiological symptoms often include a fast heartbeat, trembling, nausea, and lack of energy.
