No, I have had cramps now and again though.
Do you often do stuff without thinking about the consequences until, like halfway through doing what ever your doing? (e.g I had a friend over, I had a carton of milk in my hand. He was at the table eating cereal ((cornflakes I think)) anyway. I slid the milk acros the table really quickly ((lid was off

)) and shouted "Catch!" Now, my friend has slow reactions at the best of times...suffice to say there was milk, cornflakes and bits of smashed cutlery all over the floor.)