Well, Lexi, Welcome to the site. My name is Justin. I do know what you are going through, I'm currently in high school. I go through similar fears, I have chronic n* from a stomach condition so school has become quite hard.
My fears: v*ing, Generally being around other people who are v*ing from a virus. If I know it's not a virus I will not worry about them.
Opinions: I don't really have any. I do know quite a bit about the stomach, gastrointestinal track and antiemetics.
Life is a wonderful ride.