Well, then, some people swear by
cleansing and fasting
and that sort of thing, clearing out the digestive tract. If you are miserable with your digestion, I can see no harm in giving something like that a shot! Also, I had three docs looking at me when I had IBS, no one knew what it was, and it as ME who figured it out, so I applaud your research into your condition, could be you'll figure it out like I did.