Glenn, thanks for that. I am hypothyroid and take 100 mcg of Synthroid every day. How that might figure into the PN I'm not sure. I've never seen an endocrinologist but will be seeing my rheumotologist next week and will ask him for his opinion. I'll also read those links you so kindly posted.

I'm also finding that my feet are beginning to tingle. Suppose this has been going on for some time, but since the hand sensations are so distracting I generally don't notice anything else. But last night lying awake in the middle of the night (per usual...) I could feel the tingling, with a shot up into the thigh at one point. Oh what fun it is to ride...

By the by, I'm finding that the B12 gives my stomach a bit of a churn when I take more than 1000 mg at a time. Hope that will quiet down!