Thanks, mrsD. I will take a good look at Dr. Cohen's information. I will definitely show this to my neurologist.

And believe me, I keep my feet as cool as possible (not cold, though), or else suffer severe pain, and direct sun might as well be focused with a magnifying glass, it burns that much. But I didn't know that this was actually a "thing" even after reading about PN and such for years. I had never seen anything about it being a condition with a name. I just thought it was me.