I got some kind of sickness during a flight to London. (Before I drank too much so had nothing to drink) . Fainted out of the blue and threw up on the flight. . Landed in Heathrow and threw up in many trashcans before making it to the bathroom. I couldn't eat for days, first
vacation I lost weight. A whole size!
I bet people DID think I drank too much on a flight, might have been offended if approached with that concern. Guess you never know