Well come to HCM Thank for asking Your query being appreciated, you seems to have few complains first is bloating, second lump like feeling in throat, and constipation, over all it seems to be dyspepsia that only cause such symptosm and it is being always associated with hyperacidity else is nothiing to take anything with the history of diverticulitis and antibiotic course that took, first thing you need to do is change the diet, have light and balance diet with low calorie, second it should be stressful life, try to avoid taking heavy meal, coffee, alcohol, smoking prior to bed, divide the meal in at least two parts and you can repeat the meal three hours intervel, just emperically Tab Omerazole 40 mg with Domperidone 10 mg once in day can be tried for three weeks else it is nothing to worry hope this information helps.