Common signs and symptoms of a fruit or vegetable allergy can include: 

• Digestive symptoms (e.g. stomach pain, diarrhea, nausea);
• Intense Itching;
• Mild wheezing or coughing;
• Itching in the mouth;  
• Nasal congestion.

Vegetable and fruit allergy symptoms can vary from person to person, but most reactions are stomach or skin-related. Reactions can also range from mild to severe, including the life-threatening reaction, anaphylaxis.