Don't I know it!!
My advice is unless your dentist is a holistic dentist(which he obviosly isn't because hes telling you your Amalgams are safe!). Don't let him remove your fillings!!! He will not be familiar with the proper protocol and you could end up far worse from the mercury exposure. There are two good holistic dentist in fairfield county. One in Stamford (where Im going) and another in the Trumbull area. Go to one of these guys. They will need to pay them up front, but they do bill insurances and you will most likely end up getting at least some money back.