I have had IBS-D for over 20 years, I have had tests after test and they still diagnose me with IBS, I am taking Atropine 0.025/ Diphenoxylate 2.5 mgs. which has helped, but only for so long. I spent last Tuesday night in the hospital with severe diarrhea. I was of course dehydrated, and my potassium was very low from loss of electrolytes. It has been an on going battle, I use adult disposable pull ups, and that at least gives me a little security when going out. I like to wear my own under wear over top, it just makes it feel better. Stress plays a major roll in IBS-D as well as the foods we eat, however, as for me the type of foods I eat really makes no difference, I can eat 1/2 a peanut butter sandwich and I am headed for the bathroom. I do know that fruit and vegetables seem to trigger it most. I have found personally that if I take my usual medication for awhile then switch to something else for awhile then back to my usual, that seems to help also. But for the most part, finding what works for you is the only way to deal with this stuff. If you get the pull ups, I have found that Food lion has a brand called Healthy Accents that are very good and very reasonable in price. The truth is there is no cure for IBS, all you can do is treat the symptoms. Find what works for you, and use the pull ups for more protection. It wouldn't hurt to avoid stress as much as possible and be aware of what your triggers are. As for your back problems, I too have back problems but the two are not related. Having back problems does not cause IBS and vise versa. I wish you all the luck in the world, you CAN learn to live with IBS.