I have been on another FM/CFS board for 8 yrs and the other day a person asked the above question.
One of our researchers from I believe Australia gave this response:
(((I have never personally met a person who was cured of fibromyalgia. There is no known cause and no known cure.
However the diagnosis of FM has become fuzzy and in my opinion overused to describe a person with pain that has no clear anatomical reason. In most cases there has been no proper investigation of the pain or its source(s).
In many cases fibromyalgia is indistinguishable from ME. The symptoms are the same and differ only in degree.
I believe both of these illnesses (where indistinguishable) are the result of immunological loss of tolerance. Both illnesses involve Treg dysfunction. This could in turn be caused by many different factors. These can include genetic predisposition where a now known set of genes become poorly regulated. It typically includes vitamin D deficiency which is a known regulator of many of those genes and of Treg function. Both illnesses can follow a physical or infective trauma. Whether they can also involve a mental trauma is highly debateable but CHRONIC psychological stresses may be a factor. Environmental toxins may also increase risk because they are known to "stress" the immune system.
The point I am making is that all of these factors are probably at work in fibromyalgia/myalgic-encephalomyelopathy and so a cure is highly unlikely. Of course there are many people who I know have improved their life by doing several things to help live within the boundaries of their "tolerance". I know for some it is very hard to expand those boundaries. Most responsible doctors treat the symptoms as best they can and good doctors partner with their patient to find all sorts of help. All doctors who work with these illnesses can only help with reducing the symptoms.
With more fundamental research we will eventually find cures but I am afraid that is a long way off. Just look at MS. (When they stopped calling MS "spastic hysteria" some decent research occurred). There is more than 40X the money put into MS research than into FM or ME research. and still we are no where near a cure of MS.
There is some decent research happening for FM/ME but nowhere enough to get a cure in the next five years. ))))
Along these lines when I was trying to get my thyroid "FIXED", I had been trying for 10 miserable years.....and one endo MD dismissed thyroid immediately and said you have FM....he's the MD who "pushes guaifensen for FM people. I never took it. But I eventually got my thyroid fixed...the 10 yrs of depression lifted in 4 days......my thyroid gland was crying out for HELP....