Amy I really like yours! That's exactly how I feel about CF a lot of times, that its in control and I'm the puppet.
To me when I'm sick I don't so much feel like I'm drowning (although with all that junk in there I know why people say that). To me its more like sufficating. Its slow, its agonizing, and I struggle against it with all I've got.
I just wanted to add that even though I would do almost anything to be rid of CF forever, I wouldn't change the person it has made me. I know what's important in this life and I appreciate every moment of it. Its made me strong, stubborn, compassionate, and devoted.