What are signs and symptoms of gluten intolerance in teens?

Gluten intolerance: The term gluten intolerance is not the same as celiac disease. Gluten intolerance implies the person does not "tolerate" large amounts of gluten well, yet does not have gluten sensitivity. Symptoms in gluten intolerance would be strictly GI related: diarrhea, abd pain, bloating. Try no gluten or cutting down significantly to see if it helps.