If you already know that you have SFN, it sounds as if it's non-length dependent which can be wicked. The sweating/heat thing - were you ever tested for autonomic nervous system dysfunction?

And as to the meds you're taking - that's a pretty potent cocktail. Two anti-depressants, one anti-seizure and one narcotic analgesic.

It's possible that one or more of these are contributing to some of your problems.

I also have a neuro at The Cleveland Clinic. If I were in your boat, I'd ask for autonomic testing and very carefully read all of the side effects of each medication on the Internet, not just the sheet of paper that comes with the Rx.

Good luck,

Sheltiemom