I agree completely, its best to approach these matters with a little sceptism and with lots questions that need answering.

I don't look at the list of mercury symptoms and say, god, I experience over half of them I must be mercury toxic! I simply open myself up to the possibility that mercury might be a problem for me.

I've done plenty of research and looked at both sides of the argument regarding mercury, both provide convincing evidence, but none provide conclusive proof, and I doubt they ever will.
So I'll get my amalgams safely removed anyway and see how it goes. If i improve, great. I may well have been mercury toxic or it could just have been psychosomatic improvement from my inner belief that I was going to get well. If I don't improve I'll accept that mercury wasn't a problem for me and move on with my life.