I have had a similar problem. Pain and pressure in rectal area, no rectum. I had an illeostomy 36 years ago, and no challenges until a year ago with this pain/pressure.
I have had 2 MRIs, CT scan, removal of a small fistula, No Relief. Was sent to a neurologist, still no relief. I would love for anyone to have a solution for this.
What kind of surgery did you have? Did they create a pouch or do you have a colostomy?