Got blood test result today, high on B12, 763 pmol/l normal range 145-569 (1032.87 pg/ml normal range 60-950). Doctor said that he was not consern and must be high because I take B supplement and he had no answers for why I am still sick with headaches, fautigue, nausea, lack of appetite and diarrhea for 7 weeks. I am Vegan and Celiac and always take a multi...