I had REALLY bad candida, adrenal, fatigue, leaky gut, and mercury (and some other metals i'm sure).
I got my fillings out (was about 5 weeks ago) and I was barely able to function every day.
I'm doing very well with the candida (some days I feel almost normal). My adrenals and thyroid are much better than 3 months ago.
I started with DMSA, which doesn't seem to aggrevate the yeast as much as I thought. Order it from VRP, it isn't too expensive. I still take antifungals which give some die off but nowhere near as bad.
I'm currently on round 2 (I actually screwed up this morning with my alarm) and I'm starting to feel better. I'm doing both at the same time which I reccomend. Chelating can take years, but its something you feel slightly better after every round which makes it much more tolerable.