Coll, I am active duty Navy. When my husband was 18 he desired so bad to join the marines and become a sniper, but word got out about his CF (he was going to keep it under wraps as long as possible and then when it eventually got diagnosed, he would be -surprised) and at first he was told it woud be ok so he was really excited. Then his recruter got stationed somewhere else and the new guy told him no way, no how. You can't enter the military with any serious pre-existing medical conditions. It really is rediculious, if you have pre-existing migraines or even something as little as that it is a pain in the butt to get in. So long story short, when I was at a point where I needed to go back to school (Mark is and was full time student) or make some serious better money than I was and full medical coverage, I joined the Navy. In a way, he kind of gets to live his dream through me.
Sorry that got way off topic. To the initial poster, please keep us updated as to what the results are and if you have any more questions, if you decide to pursue the sweat test too...
Take care,
Julie