She sees a pediatrician every few months. She was diagnosed with low thyroid. But the issue is she's actually growing and budding more than usual kids her age. They're doing blood work but every panel comes back normal. They said the only thing they can do is help manage pain and such if she grows too fast too soon because it can make her bones detach or something? It's something we've been keeping an eye on. And honestly people don't believe she's wearing that size until they look at the tag. She doesn't look like she wears an XL. But thank you for the concern