Recent anaphylactic episode

I recently ate something that I am highly allergic to, oats, and had to be rushed to the ER for an EpiPen and more medication. I’m home now after being there for almost 3 hours, but I was wondering if anyone had the same experience how long after can a second episode happen?

I know it varies from person to person, but I’d like to hear from people who have this type of reaction to food. The only other time this happened to me was when I got my allergy to oats in 4th grade (I’m 28 now). My symptoms are generally better, I can breathe and my throat and tongue don’t feel like watermelons anymore, but I am experiencing throat pain and stomach pain. It’s late and I’m worried about sleeping and another episode. 😅 Thanks all!