Brenda, Welcome, and, boy do I know where you're comin' from! We are STILL waiting for an "official" dx of CF. Right now, 2 years later, my DS is still an "as if..." That means he is being tx as if he has CF, but doesn't actually carry the dx. He is PI, he is <2%ile in ht and <5%ile in wt, chronic lung problems and sinus infections, sweat chloride 42, no known genetic mutations, so...he's an as if.
The waiting is the worst, but the tests are a step in the right direction. I hope the results come back as quickly as possible and you can begin planning you son's tx.
PM me if you have any questions or just need to talk.