I also strongly believe my OCD was caused by mercury poisoning. I've had it most of my life. A few months ago I had myself tested and found I have Chronic Mercury Poisoning from my 15 amalgams and that I am highly sensative to mercury, and other heavy metals such as nickel (which i have very high levels of as well from my crowns). i had two amalgam removal procedures done and have two more to go. Can't wait to get finished so I can start chelating. I have a post on an OCD site telling of how this is like an experiment to see if there is a connection between mercury poisoning and OCD. It makes total sense since the mercury that leaches from your amalgams is mostly stored in your brain where it interferes with serotonin production. Low serotonin levels in the synaptic cleft is believed to be the cause of OCD. I'm hoping once the mercury is purged from my brain my serotonin levels should return to normal. I can only wait and see.