My doctor says I have B12 deficiency, but I've tested negative for the autoimmune condition that usually causes it, and have absolutely no gastric symptoms, anaemia, history, or family history of anything obviously related. I'm not losing weight, am not on any drugs, and I'm otherwise healthy.
She wants me to see a gastroenterologist and have a gastroscopy, but my local NHS can't offer me even an initial appointment for three months, and I can't afford to go privately.
I am tired, weak, aching, breathless and can't sleep. My research suggests that prolonged B12 deficiency does permanent harm and may predispose me towards stomach cancer. I've already had these symptoms for 6 months or more.
I would like to have B12 injections in the meantime. Can you tell me if there is any reason why I should not?