I have had lower back pain for over a year. In May I had a urinalysis done and it showed I had blood in my urine but no bacteria or pus. My doctor retested me in September and once again it showed blood in my urine but no bacteria. He ordered a cat scan with and without the dye, it showed nothing abnormal. He was thinking kidney stones but nothing showed up. I know have an appointment with a urologist but it took over 2-months to get into him. Recently it seems I have had joint pain in my wrists , elbows and shoulders, not sure if that is a symptom but I was just wondering if anyone else has had something like this. A friend of mine also had something similar and his urologist told him he had some sort of cyst on his kidney that was causing his bleeding. In time it cleared up, he also had back pain. I was also tested at the health dept for chlamydia and gonorrhea but those tests came back negative as well. Also tested for hiv and was also negative.