It's doesn;t sound like it's all in your head anymore, sounds like it's reached your extremities as well. The metallic taste speaks for itself. You probably have muscle weakness also yes?

I had difficulty articultaing when I was very sick also. Took a good couple months of heavy duty chelation for that to clear up. I am still getting better in that respect. I have had 4 teeth pulled that were loaded with metal simply because I was truly in a crises state and wasn't even going to consider other options (less expensive, less fear of complications). that helped a lot. the rest I am having fixed.

Your symptoms truly do sound like a classic case of mercury to me. I had high monocytes and lymphocytes when I was real sick too. Much better still not perfect but I have allergies on top of that which will probably never go away.

Echinacea would be really good for you, use with discretion. And find a good worthy dentist with lots of experience in amalgam removal. A dentist that knows what he's doing will cut and lift the filling straight out, if they file it down you'll get much sicker... that's a good part of how I got really sick.