Non-ulcer dyspepsia. This is a condition where you have recurrent bouts of indigestion (dyspepsia) which are not caused by an ulcer or inflammation. It is sometimes called functional dyspepsia. H. pylori is sometimes found in people with non-ulcer dyspepsia.
https://patient.info/digestive-health/dyspepsia-indigestion/helicobacter-pylori

