An estimated 6 million Americans suffer from this condition.
Symptoms are due to painful muscles, joints and ligaments.
The symptoms may be constant with periods of exacerbation or may even disappear for a short period of time and return later. There are no blood or x-ray tests that are abnormal. Many theories, attempting to explain the cause, have been advanced since its discovery in 1904. Hepatitis C is among the common infections seen with fibromyalgia. This observation soon lead to the common belief that it may be caused by a previous infection of an unknown agent.