Sixteen months ago I was diagnosed with B12 deficiency after I asked the GP for a test, having read the PA symptoms and realised that I had many of them. I have Type II diabetes and this was being treated with metformin amongst other medications. I read that metformin blocks the absorption of B12 in 1 in 10000 cases so I resolved to get myself off metformin by reversing my diabetes with a low carb high fat diet. I started this diet a year ago. My GP was very supportive and prescribed a B12 injection every two months which I found I needed. As a result I have lost 10kg in weight and dropped my sugar levels to "normal" and I finally got off metformin in January. Since then, I've had one B12 injection just after coming off metformin and don't feel the need for any further. My GP is testing my sugar levels every three months and this time I have come off another medication for diabetes and ferrous sulfate which was prescribed as part of the PA. In three months, she will order a B12 test as well so that we can see that it has finally stabilised.
So, the point of this post is, first, for those with PA from metformin, all things are possible. Secondly, I am intending unsubscribing from this forum but not before I THANK everyone for all their support and guidance when I have had queries. This forum is irreplaceable as a source of information and advice for people with an issue which it seems is hard to diagnose and treat adequately. All the best to everyone.