When I had my first surgery for my heart problem at 9 months old or so, they found out I was allergic to a certain anesthetic, I don't remember which one it was. For some reason, I think it was Penicillin but I am not sure.

I am also allergic to pollen, I get sick from it every spring. But I'm not sure what type of pollen, it could be flower or grass pollen. I never underwent allergy testing. I am just glad I am not allergic to animal dander

I hope you find the problem with your allergies soon. That reaction isn't something I'd want to go through! Good luck!