Gryffindor: Throwing up. Yeah, I know, I'm sorry but someone had to get this one. It's randomly timed and makes you lose your appetite

Ravenclaw: All the little things. Your eyes stinging, which makes you sleep for crazy long hours. Not wanting some of your favorite foods. Sneezing, a lot.

Hufflepuff: That icky-sicky feeling you have for the next two weeks. Stuffy noses that randomly turn into running noses then not having a tissue in class

Slytherin: The chills. Am I cold or am I burning up under these covers? The world may never know. *Proceeds to throw covers off*