I am sorry for your awful suffering. However - my understanding is that it is not a simple matter of supplementing with a given mineral. In order for the minerals to go where they are needed to ensure health, we are back to the kidneys, and their condition. A Dr. of TCM could (maybe) help you, especially if he/she is aware of the role of mercury in poor health. A dr. of TCM is far more useful in cases of heavy metal poisoning if they are not narrowly into their own way, but are trained in medicine more broadly. I do think they are out there.