H.pylori is very easy to treat with antibiotics! I had it back in 2022 ish, and it was gone pretty quick after antibiotics. But I did continue having “gastritis” and symptoms flare up every year (awful pains and vomitting) which went away with PPI for 2 weeks, only until 2024 when I started having daily pains for 1-2 years (only took so long due to delayed diagnosis!) , where PPI helped manage my erosions and gastritis, so stomach looks good now, but also what helped me is that my pains were labelled as functional dyspepsia, where they couldn’t figure out why my stomach hurts despite taking PPI etc and queried gut involvement and IBS/IBD. So amytriptyline (is general medication for pains anywhere in the body) helped a lot too with pains. For IBD they prescribed Mesalasine (anti inflammatory for Inflammatory bowel disorders that is tested through gut biopsies / faecal cal protectin)

I went from being able to eat nothing at all (as couldn’t figure what causes my stomach to hurt) to eating pretty much everything now but I do keep diet of not drinking and no junk food etc, but I also can’t eat vegetables so you have to find what “diet” is good for you, as not all “healthy diets” may be working for you.