Yes, yes, could well be Mercury toxicity, especially if you've had many large ones, for a long period of time.
I was reading that: "Amalgam Fillings Since 1970s Unstable: The type of mercury fillings that began to be used during the last couple of decades, non-gamma-2 (high copper), releases many times more mercury than the older style of amalgam fillings."
http://www.holisticmed.com/dental/amalgam/
Start getting into health is my tip, you can't lose. The Paleo diet is very popular right now, check it out.
"With raw in general, I have noticed more stamina and energy, and less need for sleep, greater clarity of thought, faster healing, looking younger, fewer joint problems, etc. the usual."
http://old.rawpaleodiet.com/michael-grogan/