Bailey,
I agree with Liz that the military would not accept you based on the fact that you are at a higher risk for alot of different issues. Not to mention that most of us on the board are effected by weather changes, and I believe are discouraged to fly, because the increase and/or decrease in air pressure can cause major headaches, possible equalibrium issues, and a few other fun facts we get to accept in our medical journeys.
Now, accepting the fact that the military is not a good idea, why not think in other areas that are just as important as the people in the plane. See what other options could interest you, and keep you medically safe. I know it's hard to accept things we cannot change, but if we learn how to do that, it makes it easier to find things we can change like our attitudes, and find something that will work even with our unfortunate limitations.
There are always plenty of ways to make yourself happy. It's finding the ones that work for us that can be viewed as an adventure, and growing tool in itself.