<<Disclaimer: Verify this information before applying it to your situation.>> Hi I'm on day 3 of gluten free. My brain fog is disappearing rapidly, and I have almost no gas. Gas was a BIG problem for me before. I feel so much better already. Do you think it's worth me having a biopsy done? It's not that important for me to know since I feel so much better gluten free, but it would make things easier on family getaways if I had an "official" diagnosis. Margaret