I am an 18 year old girl, weighing 125 pounds and have a height of 5 10 . As far as I know I am of a healthful status, however I am having unusually shaky calves that tingle and make it hard to stand up. I ran a few miles today but I do this every day and it is nothing out of the ordinary.
Check your magnesium and calcium levels, it is probably minerals imbalance also stress can cause same problem Good Luck