It sounds like a great flush and I am glad that you proceeded with your decision to do your flush.
You can pass stones like that because of the ES dilating your ducts and allowing easy and painless passage. Most real large stones come from the liver, but can come from the gb too. As you get out the big lunkers clogging up your liver, it will begin to work better and your overall health and the such will improve. Keep up the good work, dietary changes and flushes. Keep us posted on your progress.