1 pointMany of the McCormicks seasoning mixes have gluten. I would read that back panel next time you are at the store. The ones that don't have wheat could also be CC'd in the plant. Airborne wheat in those places would be IMHO a danger no matter how well the lines are cleaned. I use their single ingredient spices with no issues but avoid the mixes. You can always use the same single ingredient spices for the taco seasonings. If your not sure what to use just carry a packet over to the spice aisle and match them up. It sounds like you are pretty familiar with your gluten symptoms and if they include neuro symptoms it is unlikely you have a bug. All in all there were a lot of places gluten could have snuck in. I hope your feeling better soon.
1 pointI use Maseca, which is labeled as gluten free. The company does produce wheat flour, but I don't know about the same factory. Based on their lengthy website on gluten-free foods and celiac disease, you can at least be confident that they will know how to answer your questions. Maseca Questions