Changed T.S. Murphy

Kate McGuire has had a crush on her brother's best friend, Quinn Haley for years. This is her senior year of high school--a year that should be memorable. This is a year that she will never forget--for all the wrong reasons. Kate is 18 and has never had a period. She finally tells her mother--for years Kate has been lying to her mother about her cycle. Her senior year is filled with doctor appointments and trips to specialists. What Kate finds from these appointments changes every fiber of her being. Who is she? Can she overcome these issues? How will her future look?
Kate also discovers that Quinn doesn't see her as his best friend's kid sister. If he was honest with himself, he hasn't felt that way for years. He has a girlfriend and preparing for law school. Oh, and his biological father decides to reappear in his life--who wants an active part of his life. Even after he declares his love for Kate, she pushes him away afraid to tell him about her health issues. He stays and supports her though she keeps her health issues from him. But can they survive with so many issues between them?