Cramps are most definitely associated with potassium levels, especially low levels. Calcium and magnesium deficiencies can also cause them as can dehydration.
Mine are usually in my feet and especially my ankles -- the smaller muscles, I guess. Interesting how different people have them in different muscle groups.
Is there any FAST way of getting rid of cramps once they start?
Kelli! Long time, no talk! And what a great memory you have!!!!! Nope, not doing the marathon. I bought a house in the 'burbs about two years ago, so my "free" time is spent pulling weeds and watering flowers these days.