Hi, I was diagnosed with PA almost 8 years ago. My doctor was really good to start with. She started me on folate for a week while they waited for my final results. When they came back and it was obvious I had PA my trinsic factor was less than 1. I was started on 1 b12 injection a week for a month then 1 a month for 3 months then every 12 weeks. It was some kind of miracle. I had the energy again I needed to look after my 4 young children and be actively living my life. After a while maybe a year or so I felt the symptoms coming back I begged for my injection to be increased eventually they agreed and again I was living a near full life again. Out of no where they decreased them again I became so ill almost immediately, awful mouth ulcers, extreme tired ness, hair falling out, pins and needles, brain fog. Thankful they increased them again right away. I had to changed doctors but thankfully they were great and continued with the injections every 8 weeks. About 18 months ago I began getting symptoms again I asked for injection to be increased to every 6 weeks. They did for a short period but then after 6 months reduced back to 8 weeks as blood test came back at b12 levels being 1200 which according to the doctor was too high. But I can’t cope with only getting them every 8 weeks I’m so tired all the time. Just before my last injection I fell on top of my glass coffee table because I’d lost all feeling in my leg. I got my injection 4 days ago and I don’t feel any better. I’m considering si but Iv no idea where to order them from. I live in Northern Ireland. Any advice would much appreciated. Thank you .