I have a problem that I cannot find a solution for.... Whenever I work abs I am able to get through 1 or 2 sets and during my third set my abs and/or obliques will cramp up. It feels like a charlie horse in my abs or my side (it varies as to where it cramps up). The only way to get the pain/cramp to suside is to lay flat on my back or stand straight up. I have been working abs for years and have always varied up my ab workouts, but no matter what i do- I cramp up. I drink tons of water (peein clear) and have no other cramps (normally will cramp in calves when dehydrated/low on potassium. Any ideas? I have tried L-taurine in the diet with no help. I am not on anything beyond protein and vitamins. The cramps have only started in the last couple months ( 8 weeks) I thought I may have strained something and didnt work abs for 2 weeks, then slowly worked back into the usual ab routines but the same problems exist.