I got the worst charlie horse(s) while i was finally asleep at 2 am this morning. Woke me up out of…

I got the worst charlie horse(s) while i was finally asleep at 2 am this morning. Woke me up out of a dead sleep, scared my husband because he thought i was dying from how much i was crying. He massaged my left leg and my right started to get one (not as bad thank goodness), he was finally able to calm me down enough from rubbing them to where i could try to sleep. They are still sore now but not as bad. I literally almost puked from the pain. I have spent all day googling ways to keep it from happening again. Any suggestions are definitely welcome