This problem you are talking about (Tracy) is actually more common than most people think. Mercury can fire areas of the brain that cause repetitive throughts, or what I call "looping"—that is—having repeating thoughts or even songs or phrases go through your head over and over.

When the mercury exposure is gone, this can dissipate over time but it sure is difficult to live with. I lived with it most of my life but it went away completely after my amalgams were removed. This "quieting of the mind" is a huge part of what allows me to sleep much better now (post amalgam).