I lift everyday and have pretty small forearms but big and strong biceps that I work on everyday along with every other muscle group. Whenever I squeeze a dumbbell and do a set, and then put it down my forearm throbs like a bastid. It isn't a cramp, or a sprain or anything like that. It hurts when I touch it too, its like 4 inches down from my elbow on the inside of my arm. And now its starting to hurt with any fast motion of my forearm. What is it and what do i do about it?