Other symptoms include needle-like tingling of the skin, nerve pain, muscle aches and spasms, weakness in the limbs, functional bowel disturbances, and chronic sleep disturbances. Although fibromyalgia
usually presents with chronic widespread pain
may also be localized in areas such as the shoulders, neck, low back, hips, or other areas.
The cause of fibromyalgia is often hereditary or due to a physical or emotional trauma or due to lingering infection in the body such as due to mono.