anxiety that comes & goes

hi all....
i am doing a little chelation. i had my 9 Amalgams out last summer.
i got very sick for months...worst sysmtoms:anxiety,hives,tremors and at its
worst was hallicinations (misspelled-i know).
right now i take my vitamins, do colonics regularly(helps)lots of vitamin C and
probiotics(for candidas-which i hear is common w/heavy metals poison).
i took a hair analysis test that show all metals normal..but high calcium,magnesium,
barium & tin.
i was feeling okay for these last 3 weeks and now i'm starting to feel a little nervousness again :-(
let me know what you think & thank you...

janey