I can buy the normally very deliciously painful spicy stuff from Walmart now, instead of the pan Asian supermarket. I’ve noticed that it seems to taste wayyyy less spicy. It feels closer to a hot Cheetos spicy than the proper actually painful way it used to taste.
I’m guessing you’re thinking of Helicobacter pylori, but even with a diagnosis, treatment can still be elusive. For one thing because a heavy dose of multiple antibiotics can be a lot for the body to deal with, and personally I’m guessing that with mounting resistance to such, sometimes they flat-out won’t work, anyway.
Meanwhile, cutting down on gut acidity and building a good biome seem to be best for the long haul.
In any case, IME spicy and acidic foods can absolutely exacerbate the situation.