I've had fibromyalgia since I was in my mid-thirties. I was achey, depressed, tired, foggy-headed, and cranky. The house was a mess because it hurt to bend over and pick things up. Vacuuming always laid me up for a day. I quit gardening.
About five years ago, I quit drinking milk because we found my son was allergic. I decided not to have any in the house so he wouldn't feel like he was missing out. After two or three weeks, I realized that I was feeling so much better! I'm 50 now, and the only thing that is still a problem is occasional mild achiness. My tiredness, depression, fog and crankiness are gone. I now do not drink any milk or eat any milk products - not even chocolate which I love. No cheese, icecream, or anything like that. It makes eating out hard, and I do take a calcium supplement, but I've learned that even one mouthful of dairy will make me miserable for several weeks.
My doctor supports my eliminating dairy. She said there is medical evidence that dairy products can cause an inflammatory reaction in some individuals. Turns out, I'm one of them. I have talked to several others who also said they do better without milk products.
Hope this helps some of you.