First off, miralexa85 that's NOT what we do here. Yes, many people abbreviate words - for many reasons - but it's their own choice. There is NO rule that you must do that and in fact we moderators encourage the opposite: writing the words out lessens the power they have over you.

As for the OP...I've flown tons and long distances and never seen anyone sick on a plane. I think your odds of running into that are about the same as running into it anywhere there's 700 people gathered: a theatre, school, church, etc. You've had some bad luck in the past is all.

That being said, it would freak me out too and that's why I don't fly alone, don't fly on planes that have more than 2 seats across (so I can have the window and my partner the aisle) and I take Ativan. Then it's a snap!