Hi 40 yrs, the explanation for the 6 month post amalgam removal worsening is described by Cutler in his book. He calls it the "second phase of suffering". Many people experience this, some earlier, some later (I experienced it about a year and a half later, which is very late).

It seems to be the body's way of attempting to dump out the years of stored mercury. Once all amalgams are removed, the body seems to be triggered into detox mode, rather than storage mode. The tap of poison has basically been removed (shut off) and the body becomes aware there is no more daily intake of mercury and when it's ready, it asserts itself and starts to tackle the storage.

This is good, but it's painful and sometimes it can actually feel worse than how it felt with amalgams, because detox/healing symptoms usually are and it's much more dramatic. Poisoning from amalgams is insidious, chronic/slow. But healing crisis/detox symptoms are usually quite extreme in some people. I went through sheer hell on earth with it and tried to speed it up by using all manner of products that chelated/mobilised mercury. I put up with feeling even worse temporarily in the hopes that it would get the stuff out of me and speed up the slow painful process more! But I usually screwed myself up in the meantime trying to do it, until I got on DMSA every 4 hours, which stabilised things far more and got the mercury out in a way I could handle.