Return of upset stomach during Prednisone taper

I'm currently on a pred taper of 2.5 mg. Since being on 10 and the 5 I have noticed that many of my bad gastrointestinal symptoms have returned. While I have only had full diarrhea once in the past month and have never have bleeding, I have gas and an upset stomach just about all day everyday. I am having wetter and more fragmented stools as well, typically one dry and one fragmented and wet per day. I have also noticed mucous. The biggest thing besides the stomach pain and crummier bowel movements is lots of belching and reflux feelings going from stomach to throat, which has been a trademark problem for me since my first flare 2 years before I was diagnosed. BAck when they didn't know I had UC, they treated me with Prevacid, and for two similar flares I did the same. Th most recent one was a much bigger deal and wound me up in the hospital with an eventual colonoscopy that pointed to UC.
I see my specialist today. What should I ask about? Could I go on something like Prevacid or Peptobismal? I currently take two Mezavant XL daily and 2.5 mg of pred. Was diagnosed after hospital stay in early December. I'm worried she's going to ask me to take enemas or something that has nothing to do with what is clearly partly an upper GI problem (upper abdominal gas, belching,...).

I'm burping as I write this.