It's actually a fact that it will make you feel wierd and have panic attacks because I beleive your getting less oxygen. Everytime I went to Utah I would always get ear and sinus infections and my eyes would water nonstop, I was very miserable. One time I came back (to washington state where I live) and I had a sinus infection, ear infections in both ears, pharyngitas, and a viral infection, I went to straight to a urgent care in my local ER where they gave me a shot of a strong pain killer just to make me comfortable til they ran the blood tests, and the guy that they sent to get the blood told me I was very hot he could barely touch my arm, my fever was over 103. I usually would always come back with something including migraines but that one time I felt like I was dying. So be careful, and dont be surprised if you get sick from the altitude changes. If theirs a med to help it I would definitly take it, being sick when your trying to have a good time is terrible. But I hope things go well for you.