No healing crisis with NDF at all for me. I recommend a good doc who uses a form of Applied Kinesiology (muscle testing) so that you can monitor what weaknesses your body has and which remedies you need. Depression hasn't shifted with it, but you only have to look at the lab studies to know that 2 - 3 months is gonna knock out a lot of your Hg content.
I've started Dr Schulzes Intestinal Cleanses to clean up that department as muscle testing showed my colon and brain were primaries for treatment.
As for chemical chelators, if i want more chemicals put into an already toxic body, i'll go back to my psychiatrist for that.