That sounds like Raynaud's syndrome, which is somewhat common with fibromyalgia. it's caused by the blood vessels contracting and restricting blood flow. I believe compression gloves (and even regular gloves) can be helpful. My mom (who doesn't have fibro) experiences it a lot, but I haven't personally experienced it myself.

I have not, but it sounds like a circulation problem.Please see your doctor asap.
Good luck, Kim