My health has been poor for about 2.5 yrs now. Hypo, adrenal fatigue, and the last symptom for me was infertility (not a big deal for me, I felt so bad that getting pregnant was the last thing I wanted).
When my son was 14mos old, I figured out what was going on with my HCP's help, and when my son was 21mos old I weaned him. I got my fillings out just under 2 months ago (I drove 3 hours to my old city, Austin, TX, to do it because I also had trouble finding someone local--we moved right after I weaned, it was a hectic time--so I feel your pain about the practicalities of getting the work done). So, got my fillings out, started chelating with DMSA using the Andy Cutler protocol with my HCP's guidance. Also, since my son is affected (thankfully slightly--head-banging, sleep disturbances, food intolerances, stuff like that, all fairly minor, but indicative of a problem), I've been doing vit/min supps with the kids (also with HCP's guidance) and I'm starting oral chelation with him.
For me, the choice of doing nothing really isn't feasible--this has trashed our quality of life as a family and I can't leave this stuff in my kids' bodies as a ticking time bomb, waiting to ambush them like I was ambushed.
It sounds really scary, and truthfully a year ago it was. But at this point, I've spent eighty-zillion hours reading and I think this is the lowest risk way to get us healthy. And I am happy with our results so far, we are all showing improvement. There's a chelatin' mamas thread in Dental that was helpful, and info on this website:http://home.earthlink.net/~moriam/HOW_TO_hair_test.html
Not just that page on the site, but it was the one I had up just now because I'm considering getting a hair test for my daughter (I don't think she's mercury toxic, but she got a lot of mercury and other toxins from me--she just got better genes from my husband and wasn't as affected--and I think I might get some useful info from the test).
I think Andy Cutler used the available data best in order to describe the problems and solutions to mercury poisoning. He wrote a book, Amalgam Illness, and has a website, which have both been helpful to me.
Mercury messes with the endocrine system, among other things. And it alters mineral transport--I treated my hypo just with minerals sorta successfully (as a temporary fix, it was great). The hair test link talks about minerals a lot more.