For what it's worth, I had both 24/7 gas and extreme abdominal bloating and the tingling toes. After DNA testing for the celiac genes which I did not have, I have since concluded that my problem is a sensitivity to wheat. Barley doesn't seem to bother me, so I doubt if I have a celiac problem. The gas and bloating went away within a few days of being gluten free, and the tingling toes finally went mostly away after about 18 months of GF. So even if your celiac tests come back negative, you still may have a wheat sensitivity. Wheat is one of the most common food sensitivities. And as darlindeb25 has already said, the GF diet is very healthy even if a bit inconvenient at times. I've now been GF for 2 years.