Chelation therapy, Cutler Protocol help

Hi everyone. I'm thinking of try andy cutler's protocol for my mysterious brain disorder. I believe my brain disorder may be caused by heavy metals or mineral toxicity(eye drop medication seeped into my brain and reacted intensely). I'm just wondering if I should start dmsa/dmps first before ala? If yes, how long should I take dmsa/dmps before I start ala? I read that ala can cross the blood brain barrier, what other chelators can cross the blood brain barrier? Should I do a hair analysis test? Should I take a multivitamin and maybe lechiten? How about methylation protocol? 12.5mg ala is a good start?

Appreciate and thanks for any advice.

Harry Tweet