You have specific food allergy
or sensitivity need to rule out by exclusion method by keeping a log book.
Currently sop all the medication and start on nexium 40mg. nocte
Avoid spicy and fried foods. Avoid caffeiene. tea and other aerated waters.
You may have trait anxiet or a dep seated conflict need to work out with psychiatrist/psychologist
and need counselling
regarding your attitude to food.
Keep any on gluten sensitivity/ Tropical sprue
and other related disorders.
You may need an opinion of gastroenterologist on all these including Pancreatic cause as well.
we wish you good luck in in outcome.