What do you do when your child goes from being on the honor roll and in leadership activities to being forgetful and leaving home for long periods of time without you knowing where to find them? What are you supposed to think? Is it drugs? It's got to be drugs. But what if you were told the problem was in an organ of the body that is just a little longer than a AA battery and could be treated? Nadine Branch, "the hair doc" shares with #HouseCall how one of her children's rebellious teen years revealed itself as her daughter's battle with thyroid disease.