I had all the mercury removed from my mouth about 20 yrs ago.
My problem was misdiagnosed at first: I was getting palpitations and they wanted to put a pace maker in my chest (yeah, right, like that's gonna happen, LOL).
I knew it was not my heart, and started researching natural cures of all sorts. By chance I found Hulda's book ("Cure for all cancers") in a second hand store and found the recipe for LF.
I've done 14 so far: my 13th I got six stones out the size of
an olive, the collossal kind :).
I, too, have been doing it every 2 weeks, unless I get too weak from it, then I go back to a month apart.
The purging is one thing; but maybe you should consider starting on some bowel cleansing, you'll get results with either P&B shakes, or perhaps try some Oxypowder , some people swear by it.
I'm sorry to hear about your son's diagnosis: wish I could help, unfotunately I know very little about schizophrenia, aside from having a couple of very close friend get sick with it. I think it's manageable, but the only thing is, if a person gets to an extremly manic phase: then it gets complicated.
My heart goes out to you.