Miche:I am trying to find out the reverse of your question. I have had chronic low back pain deep in the tailbone area for about four years now. It came on rather suddenly, and all the tests are negative for disc etc. So I actually posted a question asking if I actually could have IBS rather then a back condition. So fara no on ehas responded to my post, but if they do maybe what I find out may help you. Have you had an IBS diagnosis? I hope you get some answers.