This is Dr. David
yes, this sounds like most likely food poisoning,
virus or bacteria in the food can cause this.
next time, you don't have to vomit or purge your foot.
I'm glad you are feeling better.
the shivering can be from you inducing vomiting or from bad diarrhea.
make sure you drink plenty of water and get some electrolytes into your system.
you can take Imodium or pepto bismal as well if you continue to have upset stomach or diarrhea symptoms
if your symptoms don't get better, do see your doctor for an examination
let me know if you have other questions.
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