Thanks for responding. I do feel loads 'lighter' and my sense of smell seems keener. I am now on day 2 of Colonix and .....nothing. I'm just a tad disappointed, especially giving my success with the P & B shakes. Maybe it's just too soon though.
Anyway, I've never seen what you're describing; maybe you can google it on this site and find something. I just did that and found what swf :) means! That swf is something else, isn't it? I think that is what finally pushed all this goo out in 20 mins!
Good luck in finding your answer. I see you made your own thread, which is always a good idea. Maybe I'll google it too and see if I find anything matching your description.