I've been on this forum for a couple of years, and all of you out there have helped me enormously to understand and deal with my diagnosis of PA.
I am in the USA and the issues with doctors are similar to UK - most are uninformed and full of misinformation. My internist (GP to those in the UK) did spot the B12 issue in 2022, and PA was diagnosed, but way under treated. This led to my collapsing back into severe symptoms in late 2022, at which point I found the PA Society and this site. Now I self inject and have settled on a regime of 2x a day. I did manage to get my internist to prescribe 1x a day, and I buy from Germany too. Interestingly, B12 injections are not covered by US health insurance including Medicare. So I pay for everything.
My internist had flatly refused to test my iron, so I did a panel privately, had low ferritin and started taking iron supplements, but have not had a positive experience apart from more energy. I finally got a referral to a hematologist as I still have a lot of fatigue, brain fog sporadically etc.
Today when I saw the hematologist the conversation did not go well at first when I told him I was self injecting 2x a day. He immediately said that this was a toxic level, that it would cause the tingling I am getting intermittently (when I inject less that 2x day) and would cause fatigue and brain fog. He even said it was dangerous to be injecting that level! I almost walked out and told him to show me the peer-reviewed science behind his statements. He gave me a print out of an article based on the experience of a single patient. The title was "toxicity caused by b12 use", but on reading the article I found that it stated the toxicity to be acne, and the patient was taking high oral doses and not injections. Next time I see the doctor I will ask him if he actually read the article!!
The good news is that he agreed my iron is low and that I would benefit from an infusion. That means two infusions as I am in the USA and that is what they do, but at least I will get them. Anyone in the USA had iron infusions and can tell me what to expect?