Your BM's do sound very IBS like, postmortem. The fact that your BM's are alternating between normal and abnormal is very typical of IBS. Do you sometimes feel that you have a BM due (like you can feel it in your rectum) but you just know that it is nowhere ready to be passed yet? I get this, and if I were to go straight to the toilet, I know I wuld be there forever, heaving and straining and possibly with only a couple of pellets to show for my effort.So when I get the feeling that a BM is lurking, I keep on my feet, walk around the house, do some bending and stretching for a good 10-20mins, and I find this can help in motivating my bowel. It might help some for you.Currently my last 2 BM's have been very normal, but the last one had a strange two-tone color, like brown and maroon. So, that gave me something new to obsess over - even though, I have had this in the past. I guess it's hard to except that there are so many deviations from the norm caused by IBS, and far too easy to get wrapped up in trying to figure out why our BM's aren't totally perfect.