For the first few years of her life, Kayla Lafi seemed to be a perfectly normal little girl—until she reached the age of six. At that point, she stopped growing, and no matter how much she ate, she lost weight. Checkups with her pediatrician revealed nothing out of the ordinary.
“The next two years were awful,” says Kayla, now 17. “I was basically going to school and then to doctor’s appointments.”