I have had a serious bout of iron deficiency anaemia when my haemoglobin count went down to 6 and I had to have 2 blood transfusions.
Before that I thought I might have B12 deficiency because of some symptoms which were probably anaemia, but also because of numbness and tingling in my feet. My GP said that my B12 level at 150 was within the normal range, which is what the lab which does their tests regards as within the normal range.
I was overtaken by the diagnosis of mycrocytic anaemia, which they were very clear meant that I did not have B12 deficiency. The doctor who diagnosed the anaemia said my B12 count was 299 at that point.
I am now taking ferrous sulphate and have stopped taking the PPI and anti inflammatories which I was taking.
My Hb count is now 14, but on my most recent blood test my B12 level is 115, which is still within the normal range according to the lab.
The numbness in my feet is getting worse, but my GPs say it could be a number of things.
What I don't know is whether I could have clear iron deficiency anaemia which somehow was masking B12 deficency, and how I persuade my GP that 115 is not a normal level.