Fibromyalgia Symptoms HOME

Does anyone out there suffer from yeast-candida-related problems? I don't know if the fibro causes the yeast or the yeast causes the fibro? Just got diagnosed with another yeast infection, and am taking diflucan. in the past when I would take it, it would make me so sick...migraine headache and laying very still so you don't throw up sick. Must have been really infested, or something. Anywho, took it yesterday and don't feel at all bad.
The frustrating thing is that I am very tired of the restrictive diet that I am on for the pain and yeast related issues. It helps so much, but the second you cheat, oh boy can you feel it!
Any advice would be nice! Thanks in advance