@Ragman,
I've no answers on any of this, listening. I'm wary of prilosec et al since they seem to be forever once you take them.
I've never been known to my self as a burper/farter, I'd call it 'no problemo'. We all do, but I've not been a major player in it.
Then one non sunny day, I started burping a lot, and what was that about? That was from one day not much, to one day explosive. That lasted a few days, diminishing. My take was that I was probably dehydrated as any other time I'd had a momentary problem, water taken slowly fixed it.
That one or two days carried on, not as badly. I watered up. I usually take plenty of water, but Burp!! This carried on for a couple of months and I traced it to after eating thick carb (toast for example, or my cheese souffle) and read all sorts of wild online stuff (I'm your average allopathic med person with some room for alternate).
I read a lot about gut bacteria and could/can see the point of many of those articles, which varied among themselves. But - my gut bacteria have been lifetime good behavers. I have reveled in food adventures, including chiles, which I've been exploring more lately. Some will say I destroyed the gut bacteria with drink, but, be realistic, not in one day. At this point, I take it as one dehydrated day that set up a rhythm, but just drinking more water didn't immediately fix it, though less burps gradually happened.
I started warily looking at yogurt blurbs for the bacti populations. I've hated yogurt since 1950 when my mother made it herself (her friend Mildred probably pushed her) in our NYC apartment (see Gaylord Hauser). I was eight and I then knew what horrible meant. In later years, I could take yogurt in the odd dip, but not the f/k in ice cream. So now my exploring what I take as good by hearsay, just to see, has led me to making some batches of smoothies, with, uh, yogurt from the market.
Yogurt non fat is added sugar city, so that is all a tangle Go ahead, try to find full fat stuff in the dairy aisle. Some, sure, but Not Fat is winning over Avoid Carbs.
I need to meet with my grocery manager. He likes me, as a friendly patron.
Plus, for those who only get vitamin d by store milk, a little fat with it is a good idea.
The burping etc. has stopped, back to normal.
I do hope it wasn't the yogurt.