I've been searching for a diagnosis for a mystery illness for 8 years. Someone recently suggested checking for Pernicious Anemia, and whilst I assumed because my B12 levels had always been fine I didn't have anything to worry about, they mentioned there are antibodies that could be tested. They also said to get 'active B12' tested, which I'm guessing is different from regular B12. I just wondered if those would be worth doing, or with completely normal levels of B12 over a prolonged period of time make it pointless?
The other thing was that my grandmother had Pernicious Anemia, and actually died from it before I was born. I don't know what the chances of it being inherited or passed on in some genetic way, but I thought if I posted this here I might get some help from all you knowledgeable people!
So any advice or help you may have would be greatly appreciated. I'm more than happy to go into details about my illness, I only didn't as it's pretty complex and would have likely turned this post into a bit of an essay! But I realise you may need lots more info before being able to comment.