Requesting advice for DMSA chelation with calcium shell

My hair mineral analysis is generaly ok, except that my calcium level is extremely high at 200mg and Iodine is none existent. Having read the book Nutritional Balancing, this is indicated as a calcium shell, which means that calcium is being leeched from my bones and lost in my organs leading to arterioschlerosis, and it can be caused by mercury poisoning, lead poisoning, copper imbalance. I have had blood test of copper and they are just a little low so nothing too major, but a DMSA challenge test proved I had high mercury and lead.

My current symptoms are low adrenal and low thyroid activity - causing constipation, abdominal cramps, dry skin, dry hair, insomnia, depression, low energy. I know that this can cause potential Arthritis and later heart attack as a result of calcium depositing in arteries.

I have done oral chelation before with DMSA last year, but I didn't follow a strict program and took DMSA at 100mg every 4 hrs from morning to night, but i might had missed some capsules and never did it during the night. The week after taking this, I already started getting low energy and this later lead to serious depression, heart palpitations and chronic fatigue.

Since the beginning of the year I have recovered from mastering my diet, creating a 'not allowed' food list, and following a strong dairy free probiotic, pea protein, slippery elm powder and apple juice diet, with moderation foods, supplements like flaxseed oil, zinc, b6, b complex, betain hci with big meals and pancreatine digestive enzymes, and chinese medicine to help with damp spleen and low energy levels. More recently I'm taking detoxified Iodine to fix the none existent Iodine in 2 hair mineral analysis.

Ok, I now have my own place for a few of months and I'm ready to begin a program of chelation again. This time I will follow it by the book, taking 50mg DMSA exactly every 4 hrs, including during the night continuously for 3 solid months. Then I will take another hair mineral analysis.

If anyone has any suggestions for me, ie any essential supplements to take during this time, I would much appreciate it. Or any explaination as to why I suffered so much the first time with DMSA, and whether there is a link between the calcium shell.

thanks