If you want gore and sickness id go for Hostel 1 + 2, the hills haves eyes (the remake).
I dont like how scary movies nowadays are just about who can make the viewer want to puke. To me this is not what a scary movie is about. I like really creepy movies. Like The Shining or Event Horizon. I remember this really creapy movie I watched once called Dead End. That shit freaked me out.