Fibromyalgia has two main components, pain and fatigue.

The pain is felt throughout the body and can range from mildly uncomfortable to excruciating, fatigue can be experienced as anything from feeling a little tired to feeling absolutely exhausted.

The American College of Rheumatology produced a criteria for the classification of fibromyalgia which gives a "history of widespread pain" and "pain in 11 of 18 tender points" as the defining symptoms. The criteria goes on to state that widespread pain must have been present for at least three months.

Other symptoms may include-


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