From MEpedia, a crowd-sourced encyclopedia of ME and CFS science and history
Chronic pain is described by the NIH as follows: "Chronic pain persists. Pain signals keep firing in the nervous system for weeks, months, even years." Chronic Fatigue Syndrome is one of the conditions mentioned as experiencing chronic pain.
- In the Canadian Consensus Criteria, pain is a required symptom for diagnosis. It requires that "there is a significant degree of myalgia. Pain can be experienced in the muscles, and/or joints, and is often widespread and migratory in nature. Often there are significant headaches of new type, pattern or severity."