Went to see a new neuro today. He did a good workup including NCS, he basically said that my nerves are fine but he theorized that my small fiber neurons are just hyper excitable. He didn't think that a skin biopsy would uncover any pathology.

Showed him that my TSH had recently tested high and he didn't completely rule that out as an underlying trigger.

Unfortunately he didn't have any compound creams that he prescribes for burning.