The problem I have with this diet is that the foods they cut out are foods that would be irritating to the gut anyway, regardless of whether or not they are supposedly contaminated, so you will never be able to know for sure what caused the slower healing. They allow fruit juices, which are incredibly irritating to the gut lining yet no coffee, no matter how pure, is allowed? That's just plain silly. If I drank a glass of OJ, I would be in a world of hurt yet whole bean coffee, that I grind myself, produces no problems, no matter how much I drink.
christiana....your symptoms of tingling are neurological in nature and those can take a VERY long time to clear up, no matter how clean your diet is. Mine took 3 years and I was uber strict with my diet and cooked everything from scratch. I also think that most of us continue to have sensitive stomachs, compared to the general population who are used to eating crap, so when you eat something with a lot of fiber in it, like popcorn, lentils and gluten-free oats, it might bother you, regardless of what happened before diagnosis. You may not have noticed it before diagnosis because you weren't feeling good all over. I did not pop with lactose intolerance, or at least didn't notice the symptoms, until 2 years into the gluten-free diet. Certain things, to this day, will bother me and it's not gluten. For some of us, complete healing just takes a long time.