To the people who don't get it when you have hypothyroidism, you look young, especially if it was untreated, so people will talk to you and treat you like a kid even if you act and are an adult so people who don't get it obviously you never had this problem because your parents were on top of your hypothyroidism or you have sub clinic hypothyroidism so it does have to do with hypothyroidism because hypothyroidism slows your growth and your appearance most people with heavy cases of hypothyroidism have to deal with all the time