A medical disorder characterized by chronic widespread pain and a heightened and painful response to pressure.
Physical symptoms can range from chronic and extreme fatigue, widespread pain, sleep disturbances, and joint stiffness. Emotional symptoms can range from depression and anxiety and stress-related disorders such as posttraumatic stress disorder.
The cause of fibromyalgia is currently unknown. However, several hypotheses have included “central sensitization.” This states that fibromyalgia patients have lower tolerance for pain because of increased sensitivity in the brain to pain signals.