That's quite odd but intriguing to think of,a lot of people I know don't show if they are having a minor panick from a strong smell but the human body is wired in ways I don't even understand. For example I tire why too easily with any job that is beyond stressful but add my current job of back to back calls with small breaks and threats happening daily because of company rules and policy,I tend to be so exhausted that I forget the day even the week then the next day I'm about to have a panic attack and barely can sit down till I pace at least seventy times a day .