The Maze Runner is a 2009 dystopian novel by American author James Dashner. It takes place in a world suffering from a coronal mass ejection and whose surviving civilians fight to avoid an apocalyptic illness called the Flare.
It is written from the perspective of Thomas, a 16-year-old boy who wakes up with no memories inside an artificially produced maze.
thomas gets sick after alby shoots ben and after going down the slide. he also threatens it many other times though and Often mentions nausea and heartburn.