not much to do with the flight/craft itself but i got on with symptoms of a very minor cold. was asleep the entire flight until i woke up just about descent for landing.
my skull felt as if it were about to cave in. looked around the cabin - still in half a daze - and everyone appeared perfectly normal.

meanwhile, for me it was like being put in a headlock by andre the giant.
had no idea about the congestion/sinus/air pressure thing. was glad to have landed just before my eardrums went past the edge of rupture.