Other countries like Japan and Korea have a huge incidence of stomach cancer, and that’s because of H. pylori and genetics.
In Singapore, we don’t have as much incidence, so the focus is not on stomach cancer. If the GP does the normal treatment, hopefully, he doesn’t miss it and says you need to be seen by a specialist.
Or you report that it doesn’t seem to be settling and you’re losing appetite, then your GP might agree and say let’s have it checked out. It’s quite easy, just go for an endoscopy.