on my last visit to the dentist about 5 weeks ago ,they had done 4 mouth xrays and the next three days I felt the old sysmtoms (not as bad as before) returning , it lasted about three days and then to started to feel better again after that , did you have a cleaning done ? if so than what may have happened was that the abrasive that they use for the cleaning removes a small layer of amalgam and reditributes it through the body along with the mercury, this may have also happened on your dental visit ,sounds like your body is very sensitive right now ,hopefully all that will change once your amalgams are out ,I know that I am feeling much better now that mine are out there are still bumps in the road but nothing like before , I started taking 4 capsules of activated charcoal a day before starting to take the algin ,they both work to mop up mercury (without chelation)in the blood sream but algin works a little better for me, its good in pinch if you run out of algin.