This began a wk. ago. I have no pain. Had kidney stones removed a yr. ago. My urine is milky in the a.m.. Through the day it becomes dark in color .. reddish brown & then dark yellow-orange. By evening it will be clear but still dark as if I hadn't had much liquid intake. I normally drink at least 2 to 3 qts. of water a day with at least 12 oz. before bed. Each time I get up during the night I drink 4-6 oz. more. I don't have diabetes. I am an 83 yr. old, active female who doesn't own TV! I take metoprolol, HCTZ, 1 aspirin a day & use nitro patches. Also take B6, magnesium oxide & folic acid for my heart. I had an x-ray of my kidneys & a urinalysis on Fri. as part of my yearly check-up. Done by my urologist's NP. No blood, white cells or infection in the urine. I know that Nitro patches can cause color but don't know why or what it means. None of my meds or supplements have colored coatings.