Hi Christine
I had a operation myself last year, they had to remove a disc in my spine that was trapping my sciatic nerve ... the longer you wait, the longer the recovery period .. I waited 10 months for my op (good old NHS in Britain eh) and I'm slowly getting the feelings back in my legs and toes, I still get pins n needles sensation, but it's a lot better than it was..
However, in your hand - where you don't have any weight baring on it, it feels like it's getting better, but as all nerves are, they inflame easily, as you are using your hands alot, and it has a weakness already there, and it's trapped.
If your doctor has expressed the need for surgery, and you are not too sure yourself, you could get a second opinion!
Good luck and take care.
Ginger