The symptoms your DD experiences sound like anaphylaxis. A food allergy can be life threatening. A food intolerance just creates discomfort. I would avoid ALL gluten for your DD. Both my kids are severely allergic to peanuts and tree nuts, so this topic isn't new to me. Are you seeing an Allergy/Asthma specialist? If not, I highly recommend it. More info at
The Food Allergy & Anaphylaxis Network