question: I am having pain in my lower right abdomen.  I have been taking antibiotics for 2 weeks, but the pain continues.  When I drink alcoholic beverages, I develop a pain in my back.  Several months ago, I had a urine sample taken for a new job, and was told that a microscopic amount of blood was found in the urine.  What could be some possible causes for these symptoms? I am 55 years old, a non smoker.  I have high blood pressure, which I take medication for.  I am 51, and I am overweight. My stomach sometimes is distended.