Sometimes when I eat raw veggies, I want to throw up afterwards..

I can't eat raw meat. I've just been getting into eating raw vegetables. Today for breakfast I ate grilled steak+egg and raw broccoli+some lightly grilled.

Only thing different was the broccoli and I almost threw it up. I was about to but couldn't get it up, everytime I moved it felt like it would come up. About an hour later my stomach finally completely settled and I was fine. Why? :/