I've been putting up with this problem for over a year now. I first noticed it while driving to work holding a cup of coffee in one hand. It seemed at first that the left arm was a little more sensitive than my right, but now both arms become numb. I am able to usually lower or raise my arm to get them to unnumb. I mentioned this to my doctor and he said that it was nothing, all older people sometimes get it and is caused by nerves in your back. Well I started riding a Motorcycle to work everyday because of the high gas prices and now both arms numb while I'm riding! I have to bring one arm down at a time and dangle until I get the feeling back. What do you think I should do??