Hi, I noted that you have a low white blood cell count. My white cell count has been low for over 20 years. I went through a number of evaluations (including bone marrow biopsy), but now just have it tested every 6 months. It doesn’t seem to have any effect. During the time I have had the low WBC, I have had PMR 3 times, all the vaccines, colds, strep throat, etc. and nothing seems to have much of an effect on the white cells. I have read a bit about an autoimmune condition that leads to low WBC.