I have been reading your posts for years, both on this forum, and the others, on and off for years.
As far as black stones, I have hoping that this means we are close to a completely clean liver. I read stories here of people doing 15+ flushes and still have stuff coming out. I hope that I am clean before then.
I had that really euphoric feeling a day after flush #2 ended, for about one day, but haven't had it since. Perhaps it was that I was exercising back then.