ok so basically you know when you flex the back bottom part of your leg, and it tenses up ral quick and you have to move your leg real quick? ok so last night at 12:00 my leg did that in my sleep, but since i couldnt pull out of it, i had, like, a leg spasm for 30 minutes. it hurt so bad! once it stopped, my leg was constantly feeling like i was running. for me its 8:58 in the morning in it still sorta aches