Diane,
When you say your Granddaughter has been tested for Crohn's and Celiac Disease, what tests have they done? My DD was diagnosed w/Crohn's almost 2 yrs. ago. They did a colonoscopy and endoscopy, and from what I've read, those are the most reliable tests. They started out with a Cat Scan and that did show inflammation in the bowel, and then did the scopes. They found the ulcerations, and did biopsies, of course was positive for Crohn's. Jodi