I stopped taking my B vitamins because I want to have an active B12 test. One month was the suggested time. But today I feel dreadful. I feel hung over and dizzy. I feel like I felt before taking the B vitamins. I have mindfully not changed anything. I am doing this because previous blood tests showed I may have macrocytic anaemia / pernicious anaemia but was supplementing at the time of the test.
What should I do?