Gee Craig, sounds like you had fun today! Sorry, sick sense of humor I know.
I am in a clinical trial so every time I go for my appts I get those wonderful exams. Doc brings out the pin and pokes me. He wants a response that I finally, last appt, figured out. Does it feel like a pin! Yes or no. I just keep telling him whether or not I can feel it. I usually lay there with my eyes closed and give no response b/c I cannot see what he's doing! I guess I am a frustrating patient for him. Sometimes I can feel the tuning fork and sometimes I cannot.
The other thing that gets me is when he grabs my foot and does the scaping along the bottom of it and tells me not to jerk my foot away. I always laugh b/c I cannot feel what he is doing so why would I jerk? I haven't felt the bottoms of my feet in 6 years!
I hope they figure out what's going on with you and it's not something that is not fixable...