First off, most of the answers you get are gonna be WAY dirtier than mine! I'll leave that to others ;-)
Sounds like you are allergic to something if your throat is swelling up.
There a medical condition that does that but I can't remember the name. Regis Philbin has it bad, that's where I heard of it. Check with a doctor.
Anaphylaxsis? If you're eating something new, cease & desist from eating it asap. You could die from this. See an allergist. You should probably carry an epi pen.
What are u eating?.Sounds like allergies to me and u need yo see uyour G/P
l get that when l eat msg, along with a headache and congestion. Try eliminating foods that contain maltodextrin and carrageenan.
ls every time you eat, or just when you eat certain foods?
Oh, sorry to hear that. Are you going to the doctor soon?