I'm sorry that you have to suffer with one or the other. I am not diabetic but controlling your blood sugar I would think is so much more important. I know that doesn't sound very comforting when you are hitting the toilet all the time. Did you mention to the dietician that you have IBS as well? If you don't want to go the rx route to control your IBS symtpoms, there are many OTC remedies that may help (with your doctor's blessing of course). Digestive Advantage for IBS has helped a lot of people here and it actually is supposed to help with all symptoms. I'm sorry that I don't have much advice on this, hopefully someone can come along and help you out a bit more.
Co-Moderator ~ IBS Forum
"Sometimes I'm afraid, and I don't feel that tough...But I'll stand back up" - Sugarland