Feeling feverish after eating?

I know for a fact that my stomach is sensitive but is it normal to feel feverish after eating something? It's not all the time but it has happened. I get very hot and sweaty and sometimes feel like throwing up. (I never had sex so I can't be pregnant. Just putting that out there) and this goes along with stomach pain it happens with anything (and again, not all the time.) I usually have to eat small portions at a time.
Feeling feverish after eating?
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