And this was supposed to be just from the flight itself?.....The closest thing I ever heard about something like that...and I will say I never looked into it or really gave much thought about it was that when you fly (and this is only while in the air)...your body has extra weight from more gravitational pull....then once you land though all is normal......again not sure the whole truth behind it or did I look into it....heard it on one of those fact or fiction shows the discovery channel has pne while flicking through channels once.....