My daughter has gluten sensitivity (EnteroLab stool test) and two genes that are positive for gluten sensitivity. My bloodwork showed selective IgA deficiency. I've tried going gluten free (although I haven't totally cut out things like maltodextrin in salad dressing), and I've definitely noticed a difference. Frankly, I've struggled with constipation for as long as I can remember, and that's no longer and issue! So I think I have some gluten sensitivity.

My question is this: Is whether/how much gluten I eat simply a question of personal tolerance (e.g., if I choose to have some gluten, I do so with the understanding I may have some struggles later) or is it a question of long-term health? Am I doing damage to my intestines if I have gluten now and then and/or in small quantities?

I really haven't been able to find much helpful info about selective IgA deficiency online. Do you have any recommendations? Also, my family doctor doesn't know anything about it. Is there a type of specialist I should see?

Thanks.