Hi, many thanks for the query!
You need to do- Repeat USG KUB, RFT, CBC, Urine (R/M).
You haven't mentioned if there is any fever
causes pain due to mechanical irritation of bladder mucosa when bladder is emptied. Also, it harbours bacteria causing urinary tract infection
Stent should be removed once infection & inflammation is settled, usually takes 15-25 days depending on degree of inflammation at the time of placement of stent.
Take antispasmodics, pain killers, anti-inflammatory drugs, antibiotics (if infection is there, as indicated by above reports), tamsulosin
, Vit. C preparation with your Urologist's opinion.
Wish you a good health.