I do have a thyroid problem but I am hyperthyroid. My 19 yr old daughter has Hashimoto's. I was told I have toxic multinodular nodules, but I think in the beginning I had Hashimoto's too.
I did take the Antibiotics for the SIBO and felt great while taking them, eating anything I wanted, which was just normal foods but it included gluten. I've eaten healthy for 9 years (raw diet, paleo, SCD) and nothing has helped me except a 10 day water fast. But that does not last either.
I'm so sensitive to foods it's the point of ridiculous.