Allergic reaction?

So I made some enchiladas without any hot stuff. About an hour or so after I ate I got so sick. Stomach cramping, nausea, and the palms of my hands itched so bad! Then came the diarrhea and I couldn’t breathe. This went on for hours thought I would throw up but only heaved. What an exhausting night. I’m assuming it’s an allergic reaction to something I ate. Needless to say I threw the leftovers away. It’s bad enough to have Copd. My expiration date was 2014 (5 yrs) Smoked 50 years and have had copd for 13 years. What a price to pay!