Has anyone found any connection between headaches and ADHD? My son is now an adult with ADHD and has been having headaches since childhood. I could not get his diagnoses until he was 16 so no medication was taken until that point. He had been diagnosed with cluster headaches but I have spoken with many of my friends that have children with ADHD and there children all have headaches, nose bleeds, etc.. I would be interested if anyone else here has any insight.View Thread