Dead at birth

Gilbert Beilschmidt Has been sick all his life and has basically grown up in a hospital. with a life made out of tests and pills what will happen if his parents finally let him go to school? Will his life finally brighten up a bit. well as long as he can keep it a secret that he's dieing (maybe PruCan? i don't think there is a trigger warning but who knows. T because I'm paranoid)