My beautiful 16 year old daughter hates her appearance. Apart from going to school, she barely leaves the house because every day is a bad hair day and she doesn't want people to see her.I have told her a million times that she is beautiful - and she really is! She has blond hair and blue eyes, she's tall and has a nice figure. SHe says she's fatter than all the other girls, her jaw is too square, her nose is too bumpy and her hair is too straight. Is this a sickness or normal teenage behavior?