You probably have bitten a part of your tongue, and for a few hours or days it creates a bump, something like a mosquito bite. Just put ice on it, if it hurts, it wil numb it
You probably have...
its trying to make the barbell get out of your tongue. dont worry about it. it goes away. mine is fine. i got mine doen 2 to 3 hours agoo. and its deveoping one