I can't do the chat right now because I am at work, but I can write something quick.
You aren't the only one who really wishes that you didn't have to take any medications. There are many other teens and adults with CF that feel the same way. I know some of them can come on and talk to you if you want them to. I can't say anything to make it go away or to make it better, but sometimes life is just really tough and you have to just keep pushing and trying.
You can't get a transplant because you have scoliosis? Is that what the doctors say? Are you needing a transplant right now?
Have you ever tried out a brace for the scoliosis? There are some "more comfortable" ones (although none of them are ever comfortable) and you might give them a try and see if you have any problems breathing. My husbands mom has scoliosis so I've seen some of the braces that she has. Maybe you can ask to try one out.
Do you eat a lot and just don't gain weight. Do you need ideas of really good foods to eat that might help you gain some weight? We can help out with that and give you some ideas if you want. Weight gaining doesn't happen right away, it can take a while but I can give you some ideas to gain weight if you want, and I'm sure others can too.