I am almost 17 w/cf and i have no idea what mutations I have, or what my pft's are. I never really thought much about them untill a few months ago when I found this forum and started posting. I was diagnosed with CF when I was 18 months old, I was tested b/c my brother was tested because he was having bad digestive problems. He also has CF. Infact, his digestive problems was so, that they were going to arrest my mom b/c they thought she was neglecting him. He does not really have a problem with his lungs. He has more of a problem with weight gain, which really isn't even a big problem. My problem is with my lungs. I get bronchitis all the time and I cough pretty much every day, but the doctors say I do not have an infection unless it is green. It is usually yellow or gray. I don't mean to gross anyone out. My brother was in the hospital 9 times before he turned 2 and has not been in the hospital since. I have never been in the hospital. We go to the clinic every 3 months. I also wanted to know if it is normal for me to cough up mucous every day. When we go back to the hospital in August we are going to fill out the paperwork for a Vest. I wanted to know how people fell about the Vest, does it help? Sorry this is so long. I really need someone to talk to. The only other person I know with CF is my brother, he is almost 16. We really don't talk about it. In fact no one in my family really does. My daddy has on been to like 4 of our dr visits since we started going. He always says he thinks they miss diagnosed us b/c we really aren't too sick. I know he is just in denial.