I am wondering how you know that you have mercury and thalium poisoning? Did you do a urine test?
I am presently undergoing chelation therapy for high lead and mercury toxicity. As far as I am concerned, if you are really toxic, then you should put yourself in the hands of an excellent naturopathic doctor specialized in environmental medicine who will make a protocol for you.
I have gotten up to now 5 IVs Edta for the lead and my load has decreased from 27mcg to 20mcg. Of course, the IVs are supervised.
I am now starting with DMPS IVs for the mercury which is 12 mcg.
The process is very slow and it must be accompanied with detox procedures so that not only the metals are chelated but they are also EXCRETED - meaning through urine, stools.
I am in Arizona, where are you? Maybe in your area you can find an environmentalist doctor.
Believe me, after two months of chelation, it is totally worth it.