Phazyme is an over the counter gas reliever. It helps me alot. I also had my gall bladder removed this year and that also helps.
Also when you are short of breath you are swallowing more air, thus the bloat, etc. I am 52 years old, still hanging in., Yeah I have more problems that when I was a kid, but who doesn't!! When I compare notes with non-cf'ers, they have complaints too. The clue is always do the best you can, make the best of what you got and don't give up. As medicine advances, there is always hope for us to do better!