Hi just worried i was diagnosed with precouis aniema and b12 deficcy at 17 years old.. im 26 now on injections every 3 months for life.. iv only had 2 blood test since 17 ... does the docotr havr to see me regualr because of it and give me regularblood test ? As they not even offered one for 3 years now ? Surley they have to if people with preious animia has higher chance of stomcah cancer