I have come to the conclusion that the same reflex that allows smokers to live with themselves, is the same one that allows people to not know they're asphyxiating their neighbours. I've always been sensitive to fragrances. It doesn't really matter if they're good ones like perfume or bad ones like ammonia. In stores I have to detour around the perfume department. However, with the onset of my lung issues, the problem has become a bit more annoying.
( Scratch and Sniff )
( Scratch and Sniff )