all good points, except that mercury poisoning from fillings is not difficult to diagnose, you just have to run the correct tests. the best tests are the fractionated porphyrin urine and fecal for mercury (you can get these for nickel too if you have metal crowns or bridges or metal on your partials). also, the Melisa test is very good. i have info on my website about all the different testing for mercury. doctors can test you, they just have to know which tests to order.