HI LTA, Welcome to the forum and life with CF. I am 33 years old and diagnosed at age 18. I think the main reason for my late diagnosis is because I am pancreatic sufficient, meaning I do not need enzymes. Problems digesting food and maintaining weight is a huge commponent of CF, esepcially when children are diagnosed in the first year of life. Its not because of their lungs, its because of their "failure to thrive." Also, I have a rare mutation 3849+ 10kbC-T and DF508. The rare mutation is associated with mild CF (based on studies I have researched). Prehaps your mutation has the same mild element? Because of the nature of my mutation, I am "expected" to live a full life. While I was upset at my late diagnosis too, but really in some ways its a blessing. Good luck.