Okay so i woke up this morning and my bicep was sore but i didnt pay it any attention. i usually flex and when i did it this morning it hurt. i felt it and i have an indention that runs down the bicep about 3 inches. i did work out yesterday and felt nothing wrong at the time. it only hurts when i move or flex the bicep not when i touch it. what could it be? no brusing or swelling. any advice?
oh my arm has been shakingall day.