I have had a very mild intermittent pain on the right side my belly under the ribs for the last two months, I had a sono of my liver and kidney and bladder and they came back normal, however in one blood test I had mucus and blood in urine but note any of them in a follow up test, however in the last two weeks I experienced blood in poop which is bright red. What can the problem be? I had no microbes in my urine just I have elevated white blood cells.