I m a 63 yr. old Itailian male, and have started working after a 2 year layoff. Physical work. My question is, I have an enlarged prostate, that I take flomax for daily, well this morning I got up to go to the bathroom and noticed that my urine was a pinkish burgandy color. After working for a few hours, the color was getting darker, after lunch it turned into a rusty brown color. and then again this evening it was blood red. I do have lower back pain from being outta shape but other than that, no pain. what could it be?