According to Derek Enlander, M.D., "I want patients to recognize that there are often other unusual symptoms that may occur in CFS. These might include abdominal pain, alcohol intolerance (avoid alcohol and medication use at all times), bloating, chest pains, chronic cough, diarrhea and other gastrointestinal situations, dizziness and loss of balance, dry eyes or mouth, irregular heartbeat, jaw pain, morning stiffness, nausea, night sweats, shortness of breath, peculiar skin sensations, tingling sensations, pins and needles, creeping sensation under the skin (feels as if an ant is crawling under the skin). In some patients, the inability to exercise may cause weight gain, as well as medication causes. Other patients may experience significant weight loss.
However, I want to seriously caution patients to not assume any symptom is simply part of CFS/FMS. This would be a grave error that could cost a patient their life. For instance, ALWAYS check out chest pains with a physician immediately. While FMS trigger points can be a cause for chest pain, it is just as likely you could be experiencing heart trouble. Never assume – check with your doctor!"
(Source: Pro Health's Healthwatch Treatment Guide 2002. Online at http://www.immunesupport.com/healthwatch/.)