Did my second flush last night. So far (it is 7:30 am) after my first ES at 6:00. No stones, only yesterdays lunch (corn etal). My question is this. If I don't get any stones can I do another flush tonight? No pain but had some pressure off and on during the last two weeks since the first flush. I am disappointed to say the least. Of course once yesterdays food comes through the stones may be right behind it.