Thank you all so much for replying. I haven't noticed anything strange or different with his stools and he doesn't taste salty to me but I know that everyone presents with different symptoms so just because he hasn't had these issues doesn't mean he doesn't have CF. He's very pale, which I know isn't indicitive of anything, but it's one of the things I've noticed about him. He just doesn't look "healthy" like my daughter does. I just can't wait to get this sweat test done and to get some results. I think the waiting is torture. Is the sweat test typically conclusive? Our peditrician and pulmonologist feel that he doesn't have CF but want to do the test to "rule it out".