Good day and thank you for being with health care magic!!! You have an inborn anomaly in the formation of your kidney while you were still inside your mothers tummy during her pregnancy. You developed two tubes (ureter) from the kidney to the urinary bladder where there should only be one. Usually the abnormal tube has an abnormal function and displaced end at the bladder. This abnormal collecting system is obstructed NCR birth and accumulates urine and no way for the urine to come out properly that is why it would cause swelling, stone formation and possibly UTIs. You need a surgical operation to remove the abnormal part of the kidney and ureter with the stone in it. In my opinion that is the only way to properly manage your urological condition. I hope I have satisfactorily answered your inquiry.