I think that the earlier liver-flushes have altered the dynamics of your bowels and that you need to take a temporary break from cleaning the biliary system until it settles down. Bowel discomfort can mimic biliary pain and is very difficult for doctors to diagnose. You don't want to deplete your bile or electrolytes if the digestive system is out of sorts. I would suggest that you look into helping the bowels because you may be constipated. I had a similar experience during my Liver Cleaning and I would have sworn that it was the liver but when I treated the bowel with PB shakes and concentrated of eating better the problem disappeared and hasn't returned. When I recommenced Liver Cleaning I expelled some mucin stones and have felt fine ever since.

I pass cholesterol (tan) stones every day.

I do one or two Liver Flushes every 2 or 3 months as prevention for a clogged liver and have for the past 5 years. I eat an apple every day... and take olive oil often. Maybe that has something to do with it...

Yes, sometimes if you have stones logged in the bile ducts, a shot or 2 of Epsom Salts will do the trick by relaxing the ducts and allowing the stones to pass through. This is perfectly normal, and is nothing to worry about. If anything, it's good because stones are leaving your liver allowing you to regain your health.