Review: Inside Out by Trueman
Zach can't tell the difference between what's real and what's only in his head because Zach has schizophrenia. While waiting for his mom (and his medications) at the donut shop, two teens with guns try to rob the store. What happens while Zach and the other shoppers are hostages isn't nearly as bad as what's going on inside Zach's head.
Excellent book, told from Zach's point of view.