I still remember that sick, sick feeling in the pit of my stomach. (littleheartsbooks.com)
You know that sick feeling when you think there's one more step than there actually is, but when you bring your foot down, there's nothing? (indiehaven.com)
Oh, and rice cakes, but I probably won't touch those again for a few years after how sick I felt after eating them. (runningwithspoons.com)