Great thread on B6, mrsD! Some of it made my head spin a little, but I'll take another stab at trying to understand it all.

It seems like I have several things to shake a stick at now. There's the B6, and then there's the glucose that you all are talking about. But then when I looked again at that old test, I saw this: BUN/CREATININE RATIO: 31.6. Now, this blood work was taken first thing in the morning, when I tend to have had a liquid intake deficit, so maybe that was why. But it seems like a serious enough thing that it should be looked at again(?), not that I'm thinking it's related to PN.

Then I got my script for the additional bood work (I really wish now that I'd make a copy of the other script so I'd know what the neuro ordered before):

Rheumatoid factor
DNA (DS) ABS
Sjogren's ABS

The first one seems pretty straighforward, but I can't rememeber why or even if it has anything to do with PN...maybe she ordered it because I complained about stiffness and joint pain.

The DNA test...I Googled that one and am still clueless. I hope someone here knows (I'm betting on mrsD)

I did find some past discussions here about Sjorgren's and discovered that it can sometimes have some PN effects, but that many docs obstinantly don't recognize the connection. So whether that's the culprit or not, at least my neuro is trying to look at more than just the most obvious causes.