Anyone else have a Redundant / Tortuous Colon?

Hello. Anyone else out there that has a redundant/ tortured colon? I was diagnosed with this a few years ago. I’m usually ok, but if I get constipated, I get sick for a week or two. Last year my gastroenterologist referred me to a surgeon for urgent surgery to remove some of my colon. The surgeon I ended up seeing (not on the recommended list by my gastro doc due to others not available for a long time) said he believed I could live with the redundant colon if I followed a low FODMAP diet. I tried the diet religiously, scientifically (I’m a scientist), and I found it’s not the food I eat that causes these bouts of constipation. The only item I’ve found that might cause the bouts is coffee every day. An occasional coffee seems fine. What has helped me stay regular in a big way is Benefiber (or any pure wheat dextrose generic) three times per day. Lots of fluid.

My gastro doc was upset with the surgeon and said I’d regret not having the surgery. He fears I will end up in an emergency situation. I have searched the Mayo site and don’t find anything about redundant/ tortured colon. Are any Mayo docs doing research or treat this condition? Anyone else suffer from this too?
Thank you! -Jayne