I'm glad that you found a solution that works for your problem. As someone that has done yoga for a couple of years I can tell you that there are exercises that you can do that will help the shoulder and upper arm as well. I was really surprised when I first started doing the shoulder exercises to find out that they provided some great relief for a little bit of pain I had in my hands as well. You might want to try a few yoga exercises some time too, if you get the chance.