My grandson, 9 years old, was constantly about tummy achespecialist had scans taken and lymph nodes as big as from the tip of my thumb to the first joint. masses of them on the outside of his colon. they opened him up and removed two of the nodes, for testing they came back negative my grand son is clean thank God for that. new he is put on a gluten free diet. Is it possible that gluten intollerance can cause the lymph nodes grow like that.