In the summer I do a lot of exercise with still playing cricket and helping on the family farm. However after this weekend I have started to experience some numbness on my left thumb at the top. I am wondering if this could be something to do with carpal tunnel as I sometimes experience some dis-comfort in my left wrist - and I know a friend who has had both wrists done recently for carpal tunnel. Just wondering if anyone has any advice on this and whether diabetes or in fact has any affect on the hands. Eugh