It sounds strange, but for the last few weeks, my joints crack everytime I move. All joints. I stand up, my knees crack. I roll over in bed, one shoulder cracks, then my back, then the other shoulder. Nothing hurts differently than usual, and my husband says it hasn't woken him up, but it really seems loud to me. So frustrating. As soon as I come to terms with one thing, something else gives out. Has anyone ever heard of this as a CFS problem?