Thank you for your reply Gem. After my research I've realized CF is not as I always thought it was. Then again autism wasn't either.
He's scheduled for the sweat test on the 15th. He also has genetic testing scheduled in November. We'll know for sure soon.
I'm assuming prognosis is much better for those with the milder versions of CF?
We have him on The Specific Carbohydrate Diet now and it's helped his stools a little.