I should also mention that before I was diagnosed I put it down to stress and anxiety which can also be symptoms of deficency. I think doctors can miss this form of anaemia quite easily as you can be deficient without your blood count showing up as being anaemic, so do insist of having a proper test for it.

I was also deficient in Folic acid despite not being a vegan or vegetarian. My doctor was also quite disbeliving as I am not thin and am slightly overweight myself.