Thanks everyone for all this info, very interesting and helpful. I think I'm bound to be more successful with chelation this time because I'm taking it more seriously (i.e. accepting that I am actually mercury toxic -- this is not a drill) and I know more about what I'm doing. And obviously I'm still learning all the time.

I've been a week without sugar and I had sudden intense cravings the past couple of days. I wonder if I'm having some candida die-off. It would also explain some of the spacey and generally "low" feelings I've had. Is it best just to keep chelating as usual when that happens?