Can it come back

Has anyone ever had the hpylori infection ? I had it about 3 years ago after I had my son and now I’ve been having a lot of burping indigestion sensation of fullness and a bitter taste in my mouth my doctor first started me of with protonix but tomorrow I’ll be telling her if I can get a referral to a gastro

But how did they test you for it if they don’t send you to a gastro the one I had 3 years ago was done by blood