No food makes me throw up, unless I have a lot of alcohol with it - the only time I've thrown up in the past ten or so years is when I had a lot of whisky.
There are a bunch of foods I don't like, though - particularly the following: Mushrooms, onions (although diced in a burger is okay, a la McDonalds burgers), guacamole, cherries, chutney, avacado, promite, cooked tomatoes, mayonnaise and tomato sauce mixed together (ugh! why!?), olives, shrimp, prawns, oysters. That's off the top of my head, anyway.