3. Diarrhea and Vomiting
Just as the fever is elevated to try and make the body a less hospitable environment, so too is vomiting and diarrhea used by the body in order to try and force out the invaders. The assumption is that something you’ve eaten may have poisoned you, and so your body will attempt to ‘flush the system’ by causing you to vomit.
At the same time, diarrhea can be another way that the body tries to purge its system. This will also be due to the toxins and waste products that will have entered the bloodstream.