Claythrow, I just finished my 41st round of chelation using DMSA/ALA. I tend to believe that what Bex said is true in my case. I took a longer break from my chelation routine this time. It wasn't as positive an experience as it usually is (I usually feel much better on round than off round) and am having bad redistribution symptoms this morning. I'm having more trouble getting my thoughts together and am feeling very warm despite a low temperature. Think I will stay with my 3 days on and 3 to 4 days off from now on.