I personally think it is more likely to have ongoing damage with no positive blood work when DQ1 (then DQ2 and 8) although I have seen no research on it.

I am a double DQ1 with complete reversal of moderate asthma, reflux, heart irregularities, borderline glucose levels, hypoglycemia, and the digestive symptoms after stopping gluten and dairy. There can be no doubt of the connection for me and my doctor even though I was negative on blood work and even on Enterolab tests.

My sister has the neuro symptoms but won't be tested. Her case would have been even more interesting for you.
Good luck,
Leslie