10. Allergenic foods
Foods that are allergenic can make your stomach hurt more. Some people have allergies to food, but it is uncommon. For example, some people are allergic not only to one or two foods, but also to three or four.
Research shows that those with eosinophilic esophagitis, a gastrointestinal disorder, eat foods which are allergic and cause abdominal problems like gastritis. It’s best to consult a certified allergist in such a situation to determine whether you have a food allergy.