It is a life long condition that has to be controlled, like diabetes or something. It was picked p a couple of years ago at my other GPs and they started my B12 injections, then when we changed practices they stopped them. You have to have quite a lot to start with, then about every 3 months. People who don't absorb B12 have sommething called the Intrinsic factor missing, but it can also be caused by your thyroid going wrong. So I'm still not sure what is the cause, but like Dawn, if it is my Thyroid I will probably be on medication for that and B12 injections for the rest of my life. When I had them before I did start to feel better. Tracy