[ A winner we have!!! Isaac heaves a sigh of relief on this, finally they get somewhere. ]

Yeah, that's exactly what an allergy is! Or mostly exactly, but like, if it makes you get sick or bloaty or break out in hives, that's like ninety percent definitely an allergy.

—They call doctors physicians already where you're from? [ History and Wikipedia, why did I not pay attention to you more, Isaac laments to no one in particular. ]