I don't recall every HP movie having a triggering scene. The books have more, but the movies took a lot of them out. Unless am forgetting something, I can recall "puke" scenes in the 2nd and 6th movie. I used to not be able to watch the 2nd movie at that part because of that scene. The first movie I could see when Harry swallows the snitch and looks like he may be ill and they even say "he looks like he's going to be sick", but of course there's no vomit at all. Beyond that I can't recall anything.