Thank you for your replies. :-) My hemo has tested my b12 and folate levels. I've not been sick with flu or cold. My MCV has been elevated since ATG and never went down. My old hemo informed me then that due to elevated MCV my chances of relapse were very high, so this isn't too much of a surprise really. I got 13 good years out of it, though.
I'm currently getting every blood test under the sun performed before getting the BMB. I've also been having Reynaud's syndrome issues developed since testing with low counts. Dr. doesn't think it's related to AA relapse, but I've read that it sometimes can occur with MDS. Anyone experiencing this?