should we be concerned that our 9 mo. old baby is experiencing constant constipation, we are giving him Prune juice, stopped his formula w/iron, and giving him water. The first time it happened he was constipated for 5 days, then he had a blow out and then leveled out for a week, and now he is right back to the same constipated state, but he is now not sleeping good and has a dry red eye starting. Should we be overly concerned?