The last time I had this much Lead coming out was when I started with Lugol's (~2 years ago), this has repeated a few times since then but was NEVER as bad as now.
Also I am not the only one, all of us chelating with DMSA are getting similar dumps. This is possibly a seasonal cleansing reaction by a body finally clearing of Hg but regardless the end result is +20g of Ascorbic Acid daily just to clear the Lead.