After years of going back and forth to the doctor with symptoms, and being told I was 'just stressed/depressed' and did not have a problem because my serum B12 was 250, (despite taking high doses of sublingual B12 for years) I finally talked the practice nurse into taking an IF test. The results have come back positive. So now I have been booked in for a course of injections. I don't know whether to be happy that it has been proved that I do actually have a problem or angry that it has taken decades of feeling ill, hospital admissions and tears of frustration to get to this point. It was reading this forum that made me demand the test, which if I had not had, I hate to think how long it would have been before I got the help that I needed. So thank you to everyone on here for giving me the courage to fight for a diagnosis.