@johntw may I ask what the original reason was for the endo? I’ve had one several years ago, also have “small” hiatal hernia which I’ve been told is incidental. I’m scheduled for another endo in July and really don’t want to do it. Having US in a couple of weeks. All around chronic constipation which comes and goes x 4 years. No firm diagnosis. Colonoscopy, barium swallow, CT, and MRI all unremarkable.