The hiccup and belching thing would be typical for me in a reflux flare. I encourage you to talk to your GI about
getting better control over that. My daughter tried a bunch of different ppis before finally settling on Dexilant. She took 60 mg/day for almost six months before she felt well enough to start weaning. Sometimes one type of ppi will work better than another. Call your GI.
If you haven't done this already, please go over to the GERD forum and start asking questions over there.