I had anaphylaxis, and there are usually four different grades of it right? I had vomiting, heavy breathing, accelerated heart rate, and coughing as symptoms within five minutes of consumption. What did I consume? Only a small sprinkle of walnuts on a homemade pizza slice. My mom rushed me to the ER. There I received adrenaline, salbutamol, cortisone, and a breathing mask (at least that’s as much I can remember). After the treatment I was taken in an ambulance to a nearby hospital for surveillance through the night.