Did you GP comment on your cold hands and feet?
I have a (not related to diabetes) hereditary anaemia problem from time to time, this has always caused me to feel cold in fingers, toes and tip of nose.
Since I started on the path to diabetes a couple of years back, I've noticed that whenever my anaemia appears again, my BG reading goes up quite a bit - and I see that anaemia can also cause you A1c to go up too.
http://content.karger.com/ProdukteDB/pr ... elNr=79722
A small number of people get anaemia caused by the interaction of Metformin in the gut - it stops absorption of B12 from food and as you slowly become B12 deficient, so too does a form of anaemia often appear.
I was never on Metformin long enough for this to be a problem, but my GP did mention it in passing, bearing in mind my recurrent anaemia. If I'd had to stay on Met, I'd have had to go for frequent B12/anaemia tests.
The only drug I take now is Glucobay/Acarbose intermittently; it does not interfere with vitamin absorption.
Might be worth mentioning to your GP - just in case he is overly focussed on your BG and didn't fully take on board your cold extremeties. It may, of course, be nothing whatsoever to do with this - we are all different!
If it *is* anaemia, a couple of shots should restore you to normality in only a week or so - here's hoping!
Hope this helps.
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