It's been a month that I have got rirs done on both kidneys as there was stone in left kidney stuck in ureter that caused moderate hydronephrosis. First I had rirs done on left kidney and stents were placed in both sides. Then after few days rirs was done on both kidneys to remove the stones. Now it's been a month now and I am feeling mild heaviness in left side. There's no pain. Urine is normal. I just want to know if it can be due to ureteral stricture? What are chances of developing ureteral stricture after surgery?