I'm not looking for a diagnosis, but rather just have a few questions. Is it possible for my 17 year old daughter to have Celiac if no one else in the family does? There is no family history anywhere that I know of. She does have at least one of the antibodies for Type 1 Diabetes, and my son has T1D. I have had several people tell me to not even bother getting her blood work done since it's not even possible for her to have Celiac.