Could dalinars curse be something to do with the thrill? I dont think he used to get sick when he used it. Now he sees the way he mutilates people on the battle field. Seems like a fitting opposite too. No longer has to live with the memories of a dead wife, but has to experience battle without the mental protection of the thrill. Also he rejected the thrill just before didnt he?Maybe that has somethkng to do with evi coming back as well.