Hi Sue,
I am sorry to hear of your dx. My daughter was born at 6lbs and dropped to 51/2lbs after she was born. She was dx at 3wks old by a sweat test. Once she started taking her enzymes she gained her birth weight back and has been growing on her own little curve since.
It was very scary having my older daughter tested. She didn't have any symptoms but it was still scary. At least you will know for sure.
Try to enjoy that little one. He needs you!
Keep us posted,
Kelly