Dental work no doubt. I had a stutter as a kid that I though was just being unlucky w/ anxiety. Also some social anxiety while on alcohol. Most of it goes away for me while on round, itll go away with more chelation. I wouldn't be surprised if the tourettes is caused by the mercury also.
I say dental work first because the mercury itself causes a ton of problems. Including big ones being lowered immunity (to the parasites) and I'm sure liver issues. Spend the money to get your fillings out, start chelation, and go from there.