This disorder is characterized by chronic pain and tender points and/or nodules within muscle tissue across large areas of the body. It is said to be part of an autoimmune spectrum of disorders. The tender nodules, which hurt when they are pressed, are found in specific places – neck, shoulders, hips, back and legs and patients present with a broad spectrum of associated complaints:

• Stiffness
• Fatigue
• Sleep disturbance
• Headache
• Depression
• Impaired muscular performance