For around a month I have been feeling pain in my right testicle that spreads into the groin area as well as the hip area. I have also noticed that occasionally I will get pain in my upper right abdominal quadrant near the liver that sometimes moves down into my lower abdominal. I have also noticed that I have been peeing more as well as having more frequent bowel movements. For about the first week the tip of my penis hurt when peeing but this has subsided now. I have had a urine sample tested and a std test and both came back negative. What could this be?