I have never had this before and am really freaking out. Last night I woke up at about 4am with a constant twitching in my left leg, slightly above the knew to the left. I get occasional twitches sometimes, but this would not let up. I would massage it and it would stop, but the second I stopped massaging it, it came back. I ended up taking a Xanax and got a little sleep, but it's still there, although not as bad. When I walk around it is not twitching.
Any idea what this is? I am pretty active and run 1-2 miles every other day. I wore high heels all yesterday - could that have affected the muscle? I don't have any muscle weakness, etc. I currently take calcium ad vitamin d supplements. I am just frantic - worried about als.