Good luck with your endoscopy on Wednesday. I'm going in for one on Tuesday, so we're in for the same fun experience. I'm starting with a manometry, then the endoscopy, followed by the placement of a 24hr PH monitor. I have asthma, and my symptoms seem to have increased a bit, so I'm following up quickly, as prior to surgery my lungs were horrible, and I don't want to go there again.
It does sound like you wrap might be too tight. I believe one of the moderators here, Bill, had difficulty eating after his first surgery because it wasn't done correctly and it was nearly impossible for him to eat. He may have posted on another of your threads. He had a redo, and now he's enjoying food again.
Perhaps they'll try stretching it if it seems too tight when they check it on Wednesday.
Good luck, and let us know how things are going for you!