Hi, I am a 62 year old female, 165 pound that had breast cancer with chemo/radiation/masectomy. 2 years later a stem cell transplant for MDS. My doctor tells me today that my kidneys are functioning 45-50% and my kidneys are equivalent to an 80 year old. What am I to do? I am on Crestor, Paxil, Xalatan and Vitamin D3 and Caltrate 600.