Comment by stevesimmons
4 days ago
I have severe peanut allergy. If I have any exposure, my immune system stays hypersensitised for several weeks. During that period, even the smell of peanuts is enough for my throat to start swelling up. It won't develop into the full anaphylactic reaction but it is certainly bad enough to make me very unhappy.
It's not physically possible for the smell of peanuts to cause any kind of allergic reaction, as explained by the link above. That doesn't mean that the feeling you're getting isn't real, but it's caused by the (rightful) fear that you have about peanuts.