Is there anyone here whose digestive function has significantly declined?

I used to have excellent digestion, but at some point, I started having trouble digesting and tend to get indigestion easily. I take enzymes and digestive aids, and I always carry a finger-pricking device with me. I even had a gastroscopy, which showed that I have reflux esophagitis. It seems my overall digestive function has declined significantly, so I sometimes get worried. How do people who struggle with digestion usually manage it on a daily basis?