Thanks but I've already done saliva testing for hormones and found low adrenal function which got worse on Chelation. Chelating causes redistribution at first and the Hg can redeposit in various parts of the body, and can in the adrenals, causing a lot of fatigue. My symptoms improved immediately on taking 20 to 30 mg of HC daily. I've known others that went through this also, and have taken HC for 2 or 3 years and then successfully weaned off if it. HC is IMHO a very useful temporary tool to help get through Mercury chelation, from point A to point B.