Thanks for the replies!

No Vit D testing yet. ANA was neg. B12 was 795 but I'm still taking 1000mcg daily.

My Neuro's message about tomorrow's appointment wrt Small Fiber Dx was "we can talk about treatment options". But wait - I didn't think SF was an end diagnosis! Just a condition of some undertermined process... I don't believe in "idiopathic", just that the connection hasn't been made yet.

Was reading about IgeneX - interesting. Costs?

Today was a good day - still leg weakness, but general energy and drive to get a lot done was intact. I'm wiped out now, but rest usually is beneficial.

I'll recap after tomorrow's appointment...