Muscle cramps--PLEASE HELP?

It's 4:45 am where I am, and the worst legs cramp EVER just woke me up. I had one the other nigt, but this was far worse--I almost cried out when I thought it was loosening and it cramped up again. I tried massaging it out, that didn't help. It felt like there were rocks under my skin. It was only one on side of my leg, on my inner calf muscle. It was so bad it actually caused my foot to point out, although I was trying to hold it so my toes pointed up. Nothing made it better, I was finally able to get up without too much pain and without falling over. What could have caused this? I've never had a cramp this severe in my life. I didn't work out strenuously in the past week, I didn't pull any muscles. The only thing was I turned my ankle a tiny bit at work a few days ago, but it only hurt for a few minutes. What could be wrong?
Best answer:
If the cramps start again...

Do this:

Sit on the edge of the bed, with your knees bent. Now take both hands and put them under your knee so they sorta "cup" around the inside of your knee. You should feel this muscle/bone on the inner side, back side of your knee. You want to try and press this hard with your hands still cupped, while swinging your leg back and forth until the pain stops.

Stretching or pointing out your feet may only make it worse.
Best answer:
Been there, done that....it works for me. I sure hope it works for you. Wish you luck!
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