Chronic musculoskeletal pain in patients with the chronic fatigue syndrome: a systematic review.
Meeus, Mira, Nijs, Jo, Meirleir, Kenny De·European journal of pain (London, England)·2007
This review looked at 25 scientific studies about chronic pain in ME/CFS patients. Most people with ME/CFS experience widespread pain along with fatigue, but there is no clear agreement on how to define or measure this pain. The review found that pain is common and disabling, but we still don't know exactly what causes it or how to treat it effectively.