"Dr. Donta presented the symptom lists for chronic Lyme disease, chronic fatigue syndrome (CFS), fibromyalgia (FM), and Gulf War Illness (GWI). He pointed out the similarities between them, and found there were few differences. He has treated hundreds of patients with these illnesses. He found that CFS and GWI have identical symptoms, and FM is only distinguished by a positive tender point exam, that is often positive in CFS and GWI as well. Clinically it is almost impossible to distinguish or differentiate these illnesses."

http://www.canlyme.com/fibrocfslyme.html