April,
Boy, lots of things can trigger a flare. A period of stress, or illness. At times it seems that they just roll around on their own. Getting overtired can put you down. They tell ya that you should try to live on an even keel. Don't get to tired, don't overexert yourself. Pace yourself. Get enough rest. If you don't have a job and no kids, those things are possible. But if you have a job and kids, good luck meeting those guidelines!!
Fibro is not for the faint of heart. It's a challenge.
Take Care!