Hi Dandelion,This is my basic problem with IBS. I hate it! And here are some things I have tried. This is a long post with everything I've tried in my life. I am 58 now and IBS started in my 20's! You need a sense of humor to get through reading my post! I have used diet to control things. What works best for me is Metamucil. I am using the wafers and they taste good. I drink from 8 to 16 onces of water or liquid with it. At one time I used 3 doses of Metamucil a day and had a BM in the AM once a day. The feeling of having to go would come and go during the day. I had too much gas. I did not use Culturelle (a probiotic)or restrict my diet, except for dairy products.Now I use Metamucil wafers once a day and I'm experimenting with more than one dose a day. I also take 2 tablets of Fiber All which can be taken anytime and without water. I take this early in the morning and it causes some gas which helps propel the BM out so that feeling of not being finished isn't too bad. In addition I use Culturelle (a probiotic) which has almost eliminated excess gas during the day. It can be taken anytime and I usually take it at night, sometimes with dinner. Culturelle is made to withstand stomach acid and works in the large intestines. Again I don't restrict my diet and don't use dairy products.The mostly formed stool that Metamucil gives me helps stop those spasms and it is those spasms that creates for me the feeling of having to go. Sometimes I personally think that a spasm starts to push out some of the BM and then stops, so it sort of gets stuck in my rectum also creating that incomplete feeling which may be real! This is my latest theory on this horrid condition.Some time ago tried a diet that gave me a mild form of D and I tried to time eating and have a watery and gassy BM that was D in the morning only and most of my intestines seemed to be clear out of stools, and then I felt fine! If I could figure a way to have this happen every day, I would use that diet. For those times the D was with me after the 1st morning BM I would use imodium which worked for the rest of the day. All this included Culturelle as well but no fiber supplements. I ate whole grains and lots of fruit in the evening and regular food with no fiber food or fruit during the day. It didn't always work the way I wanted!I also tried the above with and without fiber and using a fleets enema for a few seconds to get the spasms working to clean me out for the day! I asked my doctor what was the worst thing that could happen besides my becoming dependant on enemas. He said irritation and bleeding. This never happened. This generally worked well and I was so glad to feel relief I didn't care if I needed them for the rest of my life! Since I only let the enema in for a few minutes or less it eventually stopped creating those artificial spasms which cleaned me out. It stopped working, and water enemas had no effect on me. So I stopped using them, unless there are days that I can't stand that feeling. Since I don't do this often, it works and gets out what feels like it is still stuck there.And I almost forgot at one time a shot of vodka would stoop the spasms period! I was very careful not to be addicted to this. Being an alcoholic would have presented too many problems!!All things considered I feel much better with Metamucil Wafers, Fiber All (which kind of takes the place of enemas), and Culturelle. When this stops working I'll think of another way!! Dealing with incomplete evacuation takes trial and error and creativity!------------------vikee