Hello doctor I am facing several issues in stomach as ingestion, burping , excessive gases , acidity, stomach cramps , heaviness , loose stools , vomiting sensation, etc , till I consulted 3 gastroenterologist they have done USG abdomen, upper gi endoscopy, colonoscopy, fibroscan , complete blood test CBC
lipid hbaic
CRP esr
hiv hepatitis b,c , and not even minor abnormality found in any report, is it related to psychological issues, because I have illness phobia I have done echo and tmt also they are also normal and brain mri also normal