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

HERE you go - from the net. - sounds like what you are describing.

ACHALASIA:
A rare disorder making it difficult for food and liquid to pass into the stomach.
Achalasia results from damage to nerves in the food tube (esophagus), preventing the esophagus from squeezing food into the stomach. It may be caused by an abnormal immune system response.
Symptoms include a backflow of food in the throat (regurgitation), chest pain, and weight loss.
Achalasia can usually be managed with minimally invasive (endoscopic) therapy or surgery.

I also want to mention I'm a smoker been trying to stop for so long but can't seem to kick it I smoke on black and milds could that be the issue??!