I was diagnosed with IBS-D for the last forty years. Many colonoscopies and endoscopies and except inflammation and a hiatal hernia found nothing new. I gave up gluten 14 years ago and that has helped a lot also dairy. But there are still days I can't leave the house. As it happens Chinese food is the hardest thing I can eat. Unless the soy sauce is gluten free and the noodles are rice and not wheat. I can do Thai or Vietnamese because most of everything is made with rice. I also have PI which is Primary Immunodeficiency kind of like the Boy in the Bubble but not as bad. Since most of our immunity is in the gut that could also be the cause of my GI problems. I do infusions of other peoples antibodies in the form of blood plasma but that just helps with bacteria or viral infections not gut problems. I just signed up for a Webinar session with Dr. Mark Pimental the world expert on IBS from Cedars Sinai in Los Angeles for the latest in IBS and Sibo. It's next Thursday. Maybe I can find out something new, but do now have high hopes.