My high lead levels probably make/made me a very dull receptor.

Mercury probably isn't the best conductor of things like EMF's etc but copper and gold sure are, among others. I know when I had a crown on a tooth for a few weeks it drove me nuts, undeniable electrical charge in my mouth, adding to how I got so sick I guess. It was a ceramic crown with metal underneath. A lot of crowns even though they appear to be porcelain actually have a metal base, aluminum and other stuff in there, and that reacts pretty badly with amalgam fillings, though there are other metals in the amalgam too which also could be reacting.

Just a thought.