“Food poisoning” is a broad term that can actually cover a whole lot of different infections. Your exact symptoms and their severity will vary. That will depend on the kind of bacteria, virus, or parasite that’s infected you, how much is in your system, and how well your immune system is fighting it off.
Despite the wide range of types, most cases of food poisoning cause some mix of the following: Diarrhea, Nausea, or Vomiting. If you have a mild case, you might think you have a stomach flu or virus. You may get better without any treatment. But some people have such bad symptoms that they may need to go to the hospital.