With hindsight Gingernut, had I been sensible and reported the gastric reflux after a few years and not 30, I might have been prescribed a proton pump inhibitor such as Pantoprazole and the subsequent damage might never have occurred.
If on my routine check, I still have traces of "Barrett's", I will get a radio frequency ablation to sort it, but as that will no doubt lead to some stricture that will require dilations, I am hoping that all will be well.