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Differential Diagnosis

To diagnose fibromyalgia, imaging tests and electrophysiological studies of the nerves and muscles may be performed to rule out illnesses with similar symptoms, such as rheumatoid arthritis lupus, chronic fatigue syndrome (CFS), Lyme disease muscle diseases (e.g., myofascial pain syndrome), hypothyroidism, and bacterial and viral infections.


Research shows that 50–70% of patients with fibromyalgia also fit the criteria for CFS. However, patients with CFS usu...Read the full article