Food allergy symptom. Food allergy symptoms are the same regardless of cause. Gi: nausea, vomiting, abdominal pain, tongue swelling. Skin: hives, swelling of hands, feet, lips, eyelids, face, tongue; sometimes eczema. Respiratory: difficulty breathing due to vocal cord swelling or asthma; sometimes runny nose. Cardiovascular: dizzy, sense of doom, loss of consciousness, shock, death. Combinations? That's anaphylaxis.