The issue might be a stricture at the inlet to the pouch. Have you had an examination of the pouch lately? I had various issues over the years which included your problems as well as the inlet issue tried entocort but the only thing to work for me was pred. which set me up for other problems but I would go with a look inside to start off.
I am waiting for a date for removal as well four months so far no date as yet. Good luck scary stuff have had pouch since 1987 the last few years have not been fun hope the future is more predictable in regards to how things function when one gets up in the morning. Jan is a ways off for sure.
Best of luck to you!