We are not absolutely certain as to what causes FM, however, there is mounting evidence that FM is due to a dysfunction of the hypothalamus-pituitary-adrenal axis in the brain, which helps explain immune problems, particularly with the thyroid, and autonomic effects. (You can find newer research at http://thesethree.com/FM_Research.html)
There is also evidence that fibromyalgia is connected to other health problems, such as myofascial pain syndrome, (http://thesethree.com/Myofascial_Pain.html), heart rate variability and autonomic effects.
Just as important is knowing if you have a common comorbid condition with FM, such as rheumatoid arthritis, systemic lupus, Sjögren’s, Raynaud’s, migraine, irritable bowel syndrome, hypothyroidism, bruxism, disordered sleep, interstitial cystitis, and the many others we discuss in our book. The treatment for primary FM will not affect the myofascial trigger point of myofascial pain syndrome or treat insulin resistance, postural orthostatic tachycardia, TMD, neurally mediated hypotension, restless leg syndrome, ankylosing spondylitis or many of the overlapping conditions of which many have a centralization and myofascial component.
All blogs, posts and answers are based on the work in Integrative Therapies for Fibromyalgia, Chronic Fatigue Syndrome, and Myofascial Pain: The Mind-Body Connection by Celeste Cooper, RN, and Jeff Miller, PhD. 2010, Vermont: Healing Arts press and are not meant to replace medical advice. http://www.thesethree.com
Author of Chapter Five, Living with and Coping Effectively Through Fibromyalgia: Detecting Barriers, Understanding the Clues, in Fibromyalgia Insider Secrets: 10 Top Experts, 2nd Ed. Ebook complied by Deirdre Rawlings, ND, PhD