That's very interesting. I had no idea there was such a thing as an enterolith.
To further clarify, my motility is excellent. No constipation issues. I seem to have visceral pain caused by an overheated liver and cholestasis. I was finally diagnosed with mobile Gallstones
a year ago. Most of my problems are emotional in origin (anger) but also lifestyle. I gave up a modest but chronic alcohol habit which has helped.
The object I saw was more like the ones you described after your 16th flush, which came out a day or more later (mine did, too) and seemed to originate in the gallbladder. Other people have also described these suddenly appearing after many flushes, kind of like opaque wall putty. But who knows where it came from? It's astonishing how diverse the garbage is, once we begin removing it.