...I understand this perfectly...believe me
Gluten is everywhere in our Western culture (and getting harder to avoid in other places too, I hear)-- When I started my gluten free trial back last February, it took me a few months, really, to get it through my groundhogg head to stop just shoving things into my mouth mindlessly...
Supposedly, even crumbs make a difference and keep that immune system on overdrive (killer overdrive!) if a person reacts to gluten. One eighth of a teaspoon (half of a small peanut) of a glutinous grain can keep a celiac's intestines inflammed for up to 8 weeks, whether s/he experiences notable symptoms to go with it or not.
It's tough just getting into the habit of checking EVERYTHING, thinking about EVERYTHING (no envelope flap licking!!!!!-- no wheat germ oils in the shampoos to run down into your mouth while ya rinse, etc., etc., etc.).
These are the mistakes I made back when I tried to go gluten free in 2001...I was still ingesting a small, but big enough supply of ongoing gluten to never give myself a chance to see change...I use the word CHANGE, as opposed to IMPROVEMENT! For me, CHANGE happened first...improvement didn't happen until about the 7th month gluten free (although very subtle, gradual improvements happened before that time...the improvement I was hoping for...my "reward" for living the "good life," you could say...wasn't really noticeable until the beginning of the 7th month. So...some people see vast improvement within days or a few weeks...for me, though, it took a while.
And I guess it took me around 4 or 5 months to get myself into the habit of checking carefully for accidental gluten ingestion.
Best wishes for you, Carroll!