User blog comment:Madster./Any Tips?/@comment-2084412-20121111033917/@comment-3242795-20121111045428

No, it's not different. Unless your sinuses aren't connected to your throat (and if they aren't.... what kind of animal are you?) you will vomit if you lean your head far enough back. The body can't take that much blood draining down your throat. So it purges it.