It certainly sounds like a terrific flush. It is not always necessary to see "stones" to have a great flush. I did one this past weekend and got lots of toxins out. By that I mean, by noon of the flush day, my butt was burning, really burning, from lots of butt pee.
Then came some of pearly white shiny really hard pieces that looked like broken plastic. They were so hard, they scratched my butt when coming out. I just wonder what they did to my intestines and what they have been doing to my liver. Which, by the way was very stiff and uncomfortable until I got all of these out. I too had a really nice flush.