Hi Enough is Enough,
I'm also in Chicago, but have not had success with any doctors here regarding gut issues. How deeply have you investigated the cause of your IBS? I have candida and leaky gut, and I will be starting a program with a nutritionist out-of-state to address it. My belief is that something is often causing the IBS response in the body--either candida, leaky gut, any number of food sensitivities (can even be combinations of foods), or metals that are interfering with the process of digestion and elimination in the gut. I believe that if you can pinpoint the cause and treat it correctly, you can often reverse the symptoms and heal from it, provided it hasn't gotten too far gone. I've been dealing with my issues since 1995, but I didn't know I had candida or leaky gut for quite some time, since those are not terms doctors like to use.
Best wishes on your health journey!