I have had numerous tests that show blood in my urine. 47 yr female, I have had blood tests, urine tests, xrays, ct scans without dye. Nothing. In fact the nurse looked back on my records and said I had blood in my urine in 08!!!! they can t find anything. I have constant pain in my right back flank area, it has become a norm for me now. My hair is starting to fall out really bad.. any ideas??