My son has had the same issues from birth! He's on a daily laxative called miralax and im in the process of getting him off of this and onto something that does work! We have eliminated dairy, and other foods to help and it has but I think it's become a mental thing for him. All the tests made matters worse because it left him tramautized. I've been wanting to ask Dr. Mom what she thought I should do once we take him off of this.