Hi Brian, maybe I just will have to just keepon keeping on. I had my gp check my B12? baicely all he did was a bt then gave me a shot of B12 then tested 7 days later and said it was normal, which sounds strange after reading the info here on B12??? My mma i think it was was 1 point below the high mark???? I am wondering if i should be rechecked by someone else.