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Yes, food allergies can cause gastrointestinal problems, with symptoms like nausea, stomach pain, diarrhea, or vomiting after you eat a trigger food.

Food allergies can cause gas when your immune system reacts to certain foods and sets off gut irritation, bloating, and extra air.

Yes, food allergies can cause facial flushing when histamine and other chemicals widen tiny blood vessels in your face during an immune reaction.

Yes, food allergies can cause eye swelling, usually through allergic conjunctivitis and eyelid inflammation.

Yes, food allergies can often cause eye irritation through allergic inflammation that makes the eyes red, itchy, watery, and swollen.

Yes, food allergies can trigger esophageal spasms in some people, usually through inflammation, reflux, or eosinophilic esophagitis.

Yes, food allergies can trigger certain types of esophagitis, especially eosinophilic esophagitis driven by immune reactions to food proteins.

No, food allergies rarely cause chronically enlarged tonsils, though allergy flares can briefly swell tonsil tissue through throat and nasal inflammation.