I guess it's an allergy to some degree; don't care about the term. I only get it from melons (not watermelon), kiwi and Brazil nuts. I don't eat anything that makes my throat and ears constricted!!

I have a kiwi intolerance (not as much as an allergy) but it makes my ears itch inside and sometimes tightens my throat. Pineapple is only the tongue thing... that's a whole different ballgame.