Grows That Way  (English, Paperback, Susan Ketchen)

Sylvia wishes that hormones weren't such finicky things. She has Turner Syndrome and will need estrogen supplements to develop normally-whatever that means, since almost everyone around her seems to be hormonally imbalanced. Her doctor suspects her ambivalence about growing up has caused Sylvia to imagine seeing a large hairy creature in the woods. Interesting theory . . . but her pony has seen it too.