Hi Jim ~ My surgeon told me that nerves grow back at the rate of 1" per month. So it does take them awhile to regenerate. It's only been about 7 months since your surgery, so depending on how much damage was done, you could have a while to go. How long has it been since you've seen your surgeon?
If you haven't been back, or if your GP is taking over, you might ask him for a nerve conduction test to see how the nerves are working. That test isn't always a very accurate one, but it might tell you something. It's worth trying.

After that, just try to be patient. That's hard, I know. I wish you the very best. God bless and take care. Peace, Lee