I Love this board!! Here I've been thinking that I have some kind of defect! The pain I get is incredible! I keep thinking that at any minute my good eye will witness the other one pop out and hit the seat in front of me.
From my experience, it is definately a congestion problem. Often, I haven't had any real congestion syptoms before the flight, yet I get the pain anyway. I guess there can be alot of fluid in there without knowing it. It has come to the point where I take a decongestant before just about every flight. I also experiment with breathing to help relieve some pressue up there. I'm not sure is Afrin helps me much. I will try the moisturizing mist also to see if that helps any. Seems like the problem area is deep inside the sinus cavity, behind the eyes.
Glad to hear I'm not the only one. Let me add my "I feel your pain" to the group.