Fibromyalgia is a chronic disorder characterized by widespread, unexplained pain in the muscles and joints. The condition is often associated with the presence of tender points—specific places on the body where the application of light pressure causes pain. Other fibromyalgia symptoms include fatigue, problems sleeping, depression, and anxiety. Fibromyalgia symptoms are often triggered by emotional stress, physical trauma such as a car accident, or an illness such as a viral or bacterial infection.