I don't understand how P&B shakes could possibly create die-off. It just takes all the crap out.
But I have liver pain as well from time to time, so I know what You're talking about.
I would at least take the psyllium every day, if You think You react so strong to bentonite.
Use milk thistle for the liver, if You not already do.
Other than that Your plan is good, but still on the lighter side.
At one point You need to introduce things that kill candida.
Why don't You try the Iodine that grizz is promoting.