Is it normal to not throw up in years?
Yep.Totally normal
Yes, it’s normal to go years without throwing up. Some people simply don’t get sick in ways that trigger vomiting very often.
Vomiting isn’t something your body needs to do on a regular schedule. If you haven’t had a stomach bug, food poisoning, motion sickness, or another trigger, you might go years without throwing up—and some people are less prone to it than others.
It’s only worth paying attention if you’re having ongoing nausea, pain, or other symptoms, or if you can’t keep fluids down when you do get sick. Otherwise, your long-running no-vomit streak is nothing to worry about.