Hey there,
My daughter has been having tummy aches for years and I too keep having her tested for celiacs. She luckily has always come up negative. HOWEVER, she was just diagnosed with Hypothyroidism andafter increasing her fiber with fiber supplements and regulating her thyroid meds she does not complain. I was beside myself constantly thinking she was allergic to something and trying everything I could to help her. She was diagnised at 4 and is now 13. I give her two fiber capsules ans two turmeric capsules in the morning and same at night. Turmeric is an anti-inflammatory and I use it for that in general.
I hope this helps and I am sorry any of them have to endure this. Take care,
Angela (North Carolina, USA)