You need to wait three months to use ALA after amalgam removal. You don't want to be dragging all that mercury into your brain. This will cause fog!

It does sound like too many substances that move mercury are being used at once. You need to choose one to start with until you become less toxic. I had my filling out two months ago, also and can't tolerate anything that moves it yet.
You may wish to stay with the dmsa, and minerals, vitamins. I do not have a clue what is in amalgam formula but if it is supposed to chelate mercury..this adds to the too many.

And the cilantro...yes, my friend too much at once. Choose one protocol for detoxing and go with that. Less is more with this, and slowly.
I would stop all the chelators as you suggested and just continue with vitamins, especially a lot of C right now and maybe some activated charcoal or other absorbing product to soak up some of what is released. Let things calm down for a week or two. Then choose one chelator to use and not ALA yet.