[treefrog]

Your pinky and ring finger numbness could also be from the nerves running through your elbow (I forget what they are called). I have this. I was told not to lay my arm on armrests, like in the car. And for a while I wore a brace-type thing on my elbow at night, to keep it from bending too much. I had started having weakness in that hand, but after a few months of making those changes, the weakness resolved (it is gone completely) and the numbness lessened, though I still do have some.

Just something to keep in mind. It may not be from your spine.