Hello! I suffer from IBS too. The first couple of weeks it acted up quite a bit. The bloating went down after about a week. Tomorrow will be 5 wks for me and physically I feel better. I still have bouts of tiredness and slight headaches, and my stomach acts up sometimes, but it's farther apart and not as bad.
I'm glad you're going in for a check-up. We've really done a number on our bodies so it's always good to be on the safe side.