Food Poisoning from Staphylococcus Aureus Bacteria

Exposure to contaminated food or drink is just plain nasty, and it feels pretty nasty, too. Most of the time, the first thing you feel is a stomach ache. It might be stomach pains or it might feel more like nausea. Feeling nauseated is that sickly feeling in your stomach that you get before you throw up. This brings up the second thing that will happen when you get food poisoning: You may vomit or have diarrhea, or maybe even both.

Nausea is one of the symptoms of food poisoning.
null
Why is your body doing this to you? It's trying to get rid of the toxins from the contaminated food. Your body is actually pulling fluid into your intestines to clean them out, and the fluids come out of your body as vomit or diarrhea.