Becky - Before I was radiated I had muscle cramps all the time to the
point of being very debilitating.  I owned a plant business and was
working out and it kept getting worse. Be careful. Moderate may be
better right now. My theory, not confirmed is that sped up metabolism
pumps large amounts of lactic acid into muscles esp. during heavy use.
Muscles do not get fed what they need when you are hyperthyroid. This
much I do know. It took me five years to get beyond muscle cramps after
radiation but I was in thyroid storm when diagnosed and had tried to
keep up with my business through it all, so it took me along time to get
back. Sandy