my mam had her stent changed today she finding it very hard and painful to pass water she is 70 and had about 8 stents in the past every 3 months this has been the worst one she always has a water infection and limited quailty of life they are now talking about removing the kidney even thou it is working. is these symptons because of todays op. will they ease or should we phone the hospital,even thou she does not want to go back in ?