Hi. If it's a packaged food product and it doesn't say CERTIFIED gluten-free (or has the gluten-free in the circle)... well, I stay away from it.
I was having some of my old symptoms, and I wasn't sure what it was. I was eating Costco Kirkland bagged nuts (not the ones in the plastic jar, the raw ones for baking). Costco does a good job of indicating...