Hi C.,
I was diagnosed with Celiac Disease 3 years ago. My question for you is, did they do an endoscopy and biopsy the small intestine? They should take about 6 to 12 samples. The blood test for Celiac results are not alway true. There are alot of false positives & negatives. The true dx. is through a biopsy. You are right about having no symptoms. 80% of the people that have Celiac have no symptoms.
The unfortunate thing is, the U.S. doctors are not as educated about Celiac as they are in Europe. It takes about 9-12 yesars to be dx. in this country but only 4-6 wks. in Europe. I think doctors are becoming more aware of Celiac in recent years.
I wouldn't rush out and get your son tested, but if he does have a blood test at some point in time, you might want to have the doctor add that on the prescription. My kids don't have it. I wouldn't put him on a gluten free diet. I would let him enjoy the foods he wants to eat.
Don't know if you are part of a local R.O.C.K. chapter in your area. I have one in my area but don't get out to their meetings. I did request to be put on their email list which is great. They give me updates on foods, restaurants, cruises, and vacation spots that are gluten free.