Chelan

have you had your thyroid / adrenals checked? If either or both is running low (very common in mercury toxicity) that can cause great anxiety.

If you are chelating without supporting thyroid / adrenals you could be making them worse.

http://www.livingnetwork.co.za/healingnetwork/adrenals_thyroid.html

have a read around this website and read the thyroid link too.

Hope this helps.

Nicola