You might have a slightly pinched nerve somewhere. These things tend to work themselves out. If it lasts more than a couple of days, it probably wouldn't hurt to get it checked out. What's your potassium intake look like?
got to deal with it until its gone, i get it in my biceps and triceps alot, its just you caught something during your workout. it will eventually go away on its own. i get it at about every 3 month intervals if i do to much work in the gym and dont stretch the muscle before exercising them.
all information given is fictional and only for entertainment purposes only. it is legal to use performance enhancement medications where i live. please seek medical advice before using any performance drug, and only if its legal in your country.