Different Reaction Everytime She Gets "glutened"

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Just need some help/feedback/examples. My 7 year old daughter was diagnosed last year with very few physical symptoms (tummy aches, frequent BM, lack of weight gain/growth). We've been gluten free for a year and she's done excellent...in fact after 6 mos her #'s were back to normal. In the past year, she's had accidental glutening perhaps 3 or 4 times. It seems each time she has a different reaction...one time was a rash, another time diahhrea and last night it was throwing up. Is this normal to have a different response anytime she is "glutened"? does it depend on what or how much she's consumed?

As we're not sure of the culprit as we believe the 3 accidents were purely contaminations (eating chips from a community bowl, eating out, etc.) and not outright consumptions, we can't be sure of the amount/type of gluten she had.

Just curious as I wish I knew if there was a consistancy to her symptoms or if it always changes. Or perhaps it was a stomach bug last night rather than contaminated chips.

Thanks.