I don't know why so many people love this book. For me it was just awful! The only reason I gave this book 2 stars is because the plot was fresh and unusual. The whole hypochondria thing was interesting, and I enjoyed reading these panic attacks the main heroine had. But this was all that was good in this book. 
 I can't criticize language, construction of sentences or right words using, because English is not my mother language. But writing was horrible! First of all, the book is written is present tense which was really confusing for me. Then I felt like author was lazy to describe some scenes. It was just like "so we go there and do that thing. Okay, next scene now..." All the time I read it, I had a feeling I was reading some script. 
 And finally, main character was plain, naive and not very bright.