A lady at my work had a similar injury when she fell while bowling (ouch). She does stretching exercises twice daily every day, even though it hurts. Basically, she is trying to re-teach her muscles and tendons and so forth how to move again, which sounds like the same boat you are in. She has been out of a cast for about 9 months now and still have another 3 months of PT left, so my guess is that you may have stopped your therapy too soon. I would recommend soaking the joint in warm water while you rotate your wrist in all directions. that hould help some of the pain brought on by using it, but will also give your wrist the exercise it needs to get stronger. Good luck!