On February 24, a week and a few days after a bone marrow biopsy, I learned that I have a new, and more serious health condition than the one I have been battling over the past four years. In fact, it was the chemotherapy I received this past summer for that disease, called Langerhans Cell Histiocytosis (LCH), that is the cause of my new health challenge. Against 99 to 1 odds, the chemo seriously damaged my bone barrow to the …