Can I still have mercury in brain, despite dmps challenge test showing low numbers..?

Hello. My original test said I was at a level 44 for mercury. After 6 months chelation doc says its almost too good to be true- showing a level of 6.9 from what used to be 44. He tested again after 2 months and now Im at a 2. He still is unsure and says they could be not coming out and it takes longer to come out of brain.. Any thoughts? Im still blah feeling emotionally, tired, poor memory, sometime fluish feeling.. Also since I have been chelating Ive been gaining weight! I am on armour thyroid but still not where I was before in weight. I am 31 yrs old. Anyone have experience with metals not coming out but still getting results from continuing chelation?? Thanks! Tweet