Anyone on here had obesity surgery and ended up with chronic diarrhea?

Not common, but . . . Chronic diarrhea after weight loss surgery is rare. Might see your doctor to check for stool culture, white blood cells, and stool fat. Some diarrhea can be from poorly absorbed fatty acids. Suggest trial of pancreatic enzymes through your doc. Also try more fiber, banana flakes, and probiotics.
Common. If you had a gastric bypass, malabsorption is expected and your bm consistency will change. If you work closely with your support group, dietary and behavior changes are usually very helpful in getting things under control.