My mom has emet issues ( tho she hides them quite well) and my oldest daughter who is 12 is starting to show some signs. I guess it would depend on the type of emet they had, meaning how sever and such.
I am one who like to be left alone during my stressful times an panics and when I'm not feeling well, so if they were like that, then it would work well, having someone who understood. But if they were the type to need company and someone there when they were panicked, then it could definately pose a problem! Lol