I went to urinate and my urine had blood. I am 75 tears old, feel great, no back or kidney pains and was totally shocked. That happened last night before I went to bed. During the night, I urinated 3 times and everything was normal, When I woke up this morning, my urine was normal but after an hour, I decided to go again and this time I passed red urine and a burst of congealed blood? Mitch