Unfortunately, my boyfriend of almost 6 years (living together for 5) seems to be like this. He gets angry when I don't go out or do things with him after getting sick (gluten or dairy ingestion) and complains that "everything" sets me off. Just yesterday while walking the dog he suggested that perhaps it wasn't the food that was causing my symptoms and that's just the way I am. Despite the physical evidence (which I photograph for future documentation), he still questions the validity of it all! Just today he got upset that I didn't go to the gym with him, as I sit here typing with a hot water bottle on my abdomen.
In addition, I have been diagnosed with Asperger's Syndrome and he even gives me a hard time about that. He doesn't understand why I just can't understand social situations and cracks "retard" jokes all the time. Note: I have two older siblings with autism which he jokes about all the time as well. Unfortunately, his brother and mother are no better. Only the father seems to be sensitive to these types of "invisible disabilities," probably because he has food intolerances himself. Unfortunately, the family criticizes him for being a "hypochondriac."
I remember years ago my grandfather mentioned he had troubles digesting cilantro and to disprove this my mother switched the parsley one night with cilantro and didn't bother telling him. She said the fact that he didn't react means he was full of B.S. I worry that one day someone will "test" my gluten and dairy sensitivities the same way.
Depending on how long you were poisoning yourself, it could take years for the villi to heal. There's also the possibility that something else flattens villi--isn't there? Doesn't casein do it for some people? (just looked it up--seems rare, but it's a thing that can happen)
Obviously being as strict as possible can only help you.
If you don't mind my asking, what were your symptoms like, if you were able to keep a not-so-strict diet without getting sick enough to make you stop that?
1. Celiac disease was first described in ancient Rome by a physician named Galen in like 250 AD. WAY before the advent of genetically modified/specially bred wheat varieties.
2. Spelt is also considered a "heritage" cereal and is just as toxic to celiacs as regular wheat, barley, and rye.
There is definitely something about our modern environment that is causing the incidence of autoimmune diseases to rise. However, reality resists simplification, and I think this theory is basically hogwash.