THAT is not farfetched. In fact, because I set out mouse poison in the shape of bars in my crawl spaces, the attic, the cellar, I was thinking that maybe the culprit of my illness. I brought it up to my neuro who didn't really bat an eye at it, but did a blood test called cholinsterase. I didn't get a clear answer, but was left with the impression that was to check for poisoning. You've got the right idea, keep thinking, thinking, thinking and advocating. I hope you are feeling okay yourself.