It certainly does "seem" like it, but again, can't be absolutely sure. As with myself, I know a bit about mercury also. I Had a dentist that prescribed a protocol for me (though I had already had all amaglams out), but I had and have cavitations. I could not tolerate the detoxing. In fact, I thought I was going crazy and I kept stopping because many times I was on the floor screaming and salivating. He pushed me to keep going and told me it was just in my mind and I was "blocking the healing process". Needless to say, I had to stop for my own sake.
So I have some idea of the dangers. Though what Besty mentioned was obviously not the same as what I was given, I do not tend now to respond to any form of detox or chelation, as the toxic situation for me is ongoing. I believe it's a waste most of the time. The only time I respond a little, is if I've had another outside exposure to mercury and then I may use some chelation for that temporarily to chelate that exposure back out (as I have no Amalgams anymore), but as for ongoing chelation? THe jawbone infection I believe causes issues with that and things are highly risky for me now. If I do anything, I end up in great pain in the gut area. Not sure whether cavitations have any impact on the gut, but this is where I get hit and end up in pain for months from doing one thing wrong!
The only things I can handle mainly are a proper healthy Diet and supportive supplements (antioxdants).