Hi There:
the upper GI issues have zero to do with rectal prolapse - it is two separate things. I am not a doctor but work in the medical field and have GI issues myself so am very familiar with a lot of it. Regular GI doctors deal with "regular GI issues" i have found that they are not very helpful when it comes to the more "rare issues" and the sad thing is they don't refer you to a specialist either - you need to be your own advocate. You need to find a Center near you that specializes in "digestive disorders" - maybe a university hospital or something like that. What city/state are you in?? it is POSSIBLE, if you have difficulty swallowing - that there is something wrong with your esophagus (the tube that goes from your mouth to your stomach) and it is not contracting properly and forcing the food down into your stomach properly (as i said - i am not a doctor - but from the symptoms you mentioned IT IS POSSIBLE). Also may be something wrong with the sphincter at the top of your stomach and that is why the food is "coming back up" If it is the esophagus problem there is treatment for it - google "doctors specializing in esophageal achalasia in "the city you live in" and see if you can find someone who deals with this (if you indeed do have it) - its a start. Don't waste your time going to another regular GI doctor - i experienced the same thing - got no help from GI doctors until i went the the Center for Digestive Health and found someone who specializes in the condition i have. hope this is helpful