Hey @SteveG - thanks for the advice.
I have not (yet) tried the catheter / irrigation technique. It was suggested on another thread, elsewhere, but I have such anxiety doing the simple enema, that I dont know if I'd be able to manage the tube. In any event, what do you mean by "push the valve" open?
I tried to argue with the ER docs the other day about how the CT scans don't usually show what I'm thinking is going on, but they wouldn't hear it. Right now, I'm in so much pain during and after BMs (and general discomfort otherwise), I don't think anyone is putting anything up that way unless I'm under anesthesia.
Certainly not hoping for surgery!! See what happens on Monday and go from there - thanks, as always, for the advice and positive thoughts!