I have IBS and IC so I definitely understand what you’re going through. Believe it or no Bikram yoga has helped my IBS tremendously. Practice wind removal posture it’s amazing for your digestion system.
Although, when my IBS is bad, I have a horrible class. I feel miserable and frustrated with myself. Do you go to class in the morning or evening? I can only practice early morning at 6am or 8am because anything I eat can trigger my IBS, which makes the evening classes tough for me. I’ve also been working with a doctor to help my symptoms. Look up the FODMOP diet, its helped me a lot. Do you have constipation or diarrhea?