For reasons that are too embarrassing to explain, I suspect I might have something wrong with my parietal cells. I've had the full blood tests, plus B12 serum, folate, and IF antibody tests - all 'normal' (i.e. B12 in the 'grey zone'), but I wasn't tested for Parietal Cell Antibody. Would anything have shown on any of the tests I've had if I had a Parietal Cell problem, and, more importantly, could I be tested now for Parietal Cell antibody if I've been taking 1200ug doses of B12 (sublingual)?
I'm pretty sure the B12 won't affect an antibody - it's either there or not, but I haven't really researched the parietal cell variety yet so I thought I'd double-check with the experts. I'm already provoking my doc by asking for B12 treatment when he thinks my level is acceptable, but I know something is wrong here and I think Parietal cells might be the root problem. I don't want to provoke him further by asking for more weird, and to him unnecessary, tests so can anybody reassure me that parietal cell antibody testing is like IF antibody testing and therefore immune to me taking B12 supplements?