First I recommend you take off the caps lock just in case someone thinks you're shouting.
I've heard other people who have reported improvement after replacing root canals, so that would probably be a good idea.
I presume by metal fillings you mean silver (mercury) fillings. The ones that leak mercury into a person's body.
You should find out about heavy metal toxicity and chelating. I think you really need to get the mercury which leaked from your fillings out of your body.
That would require systematic chelating using something like the Cutler Protocol. It will probably help tremendously with the other problems you've described.
Chelating helped reduce my yeast troubles quite a bit in about 6 months, though it can take much longer to clear all the mercury out. Now, after a few years of chelating, my health has improved a lot, and I can break my anti-yeast diet and my reactions are reasonably mild.
It's important that if you want to try chelation, you should find out all you can about it before you start.