In mine, I put it down to my GI system just taking a general and highly prejudiced dislike of the rest of me.
I'm rx'd gaviscon by the ton, along with ranitidine and a proton pump inhibitor, varies between pantoprazole and omeprazole, and lansoprazole has been used also, although I can't say I notice any difference between the different PPIs.
I don't think I'm at much danger from obesity. For two reasons. I've one of those metabolisms that seem to be ok with packing down as much of whatever as it takes to satisfy my appetite, and two, there never seems to be enough food here anyway.