Hi Trix...
I can't add much to what Wendy has already said, except to say that she is exactly right. It takes a lot of time and research to learn your own personal reactions to FMS. For me what worked best was keeping a symptom journal, in which every day I recorded the weather, what I ate, how I slept, etc. The one thing I have heard from the most people with FMS is that finding a way to get good, regular sleep is crucial to managing it. It's certainly the case for me. If I can't sleep, all my fibro symptoms increase.
Good luck with everything!!!
Idealist