I recent had what I thought was going to be an Intrinsic Factor Antibody blood test, it actually transpires that my bloods were sent on for further tests (IF not done I don't believe) but I have now had a Serum Methylmalonic Acid Level test done which gives a result of 0.33 (range 0 - .29 umol/L). The IF test was originally requested due to suspected B12 deficiency but it seems I am now travelling down a rabbit hole.
The GP (who is new btw and seems to actually listen) spoke to me about my results and explained she did not want to put be straight onto B12 injections until she spoke to a specialist haematologist as my results are complicated. I also have a low Serum Total Protein 64 (range 66 - 87g/L) and generally my Folate is low but at present its had a boost by tablets and is 20 (range 4.6 - 18.7 ug/L) at present but it never stays up there.
Obviously having spent years trying to get someone to listen I am now relieved but also concerned, initially I though I might have perinous anaemia but my results are not leading in that direction.
Any clues anyone - all paths will be followed thanks