a couple of nights ago i was lying in bed, and all of a sudden i got cramp in my calf and it hurt so bad i was nearly crying, my muscle was sticking out like id been training for a bloody year. now iv got a really bad pain where i had cramp.
so my question is how is cramp caused? i no its through too much excercise but i didnt do any excercise to trigger it of. thanks SSx