it could be your sinuses. before i fly, i have to take pseudoephedrine aka sudafed (the real stuff...not the "PE" you can get over the counter). you can get it w/out a script, just need to sign over ur 1stborn to the pharmacy to be sure ur not making meth with it.

the sudafed opens up your sinuses relieving the pressure. people usually feel it in their ears, but everything is connected to ur sinuses in ur head somehow, which happen to be behind ur eyes. give it a try. otherwise, it's amtrak for you. good luck.