EMG?
it may be nerve involved. it feels a lot like the pain I had when I had a nerve sheath tumor growing on that wrist. (it was benign, btw) I have had some numbness, but mostly just pain. I am pretty rough on it (repetitive tasks positions and tasks) I figure it is just a warning sign that I need to be more well-rounded and not do the same thing for too long. I dropped an egg yesterday actually. stooped fingers.
I had surgery on my wrist for so etching similar. In most cases, what I had, is a use injury. Similar to carpal tunnel, but specific to the wrist. In my case, it was caused by a nurse missing my vein and hitting the nerve. I had to stop breast feeding my baby because I couldn't hold her. It was something tensonosis or something like that. I used to perform spinning fire (poi and staff), but I can't do that anymore.