I have to agree with find and others. I was having severe leg cramps in June. I've had RSD for ten years and its been full body for 7-8 years. I had never had severe cramps like this before. My doctrine did some lab work and I was severely dehydrated. I live in the SE and have a bottle of water by my side CONSTANTLY. I never would have thought that I was dehydrated. I have noticed that I really have to pay attention to that this summer and make myself drink more than I think need. Several times since that lab work, I have found myself having those same cramps but milder, so I have to reach for that bedside bottle of water. Remember too hat if you are taking narcotics and I think too, neurontin or Lyrica, those cause drying.