From what I've read in magazines and on the internet, fibromyalgia is still a mystery illness. The theory that it stems from the brain's over-sensitivity to pain signals, is probably the most reasonable theory thus far.
The fibromyalgia pain and emotional symptoms are bad enough, but adding fatigue to it, makes it all the more intolerable. I think that eating a well-balanced diet and taking supplements of vitamins and minerals can only improve your condition.
If you can strengthen your immune system enough, you may begin to feel better. The best to all those who suffer from fibromyalgia and chronic fatigue syndrome.