I have the same pain as you, my friend. I had it for a few months back in the winter months, but I just stopped bis all together in spring because I started running and just never hit my bis hard at all... the pain went away, but this summer I started to bulk again and as my curls have increased, this pain has come back. Ive had it about a month or a little longer, on the bottom (pinky side) of my forearm. I was told it was because the muscle is under developed in my forearm, and because of the wrist movements, as has been said above. I am going to the that towel idea next time I go over to the gym. I also agree that the slow release helps, I have to do it with most of my exercises that use my forearm at all now because of the pain, but I notice that it goes away alot quicker. I also use the hammer curls and keep my wrists turned in ( or not flat) as long as possible during the reps, to help keep stress off the wrist. I never ever do BB curls anymore, they are horrible.... I do BB rows though. the EZ bar is great, but I still feel pain in there. Im up to doing 3 sets or 105 for 5 reps or 3 sets of 95 for ten. and it just kills my forearms. I often will have pain for over a week after a hard bi exercise. but lately it seems that my forearms have gotten a little strong, as I did lower weight for more reps. maybe this will help you to train up to it? I did the wrist rolls etc and they just made it hurt even more. anyways just letting you know, your not alone!