My Mother Has Severe Nausea , With The Inability To Vomit Or Burp. She Has Had Her Gallbladders Removed

My mother has been sick over a year. No one seems to know what is wrong with her. She is 77 years of age. She has had all types of blood work done, colonoscopy, endoscopy and barium tests. She also has had her gallbladders removed last August, after a year of illness. She will be better for a couple of days then it starts all over. She has lost weight not extreme but about 15 lbs since this all started. She has severe nausea , with the inability to vomit or burp. Then after that eases she starts with watery stools. She is now on compazine, levsin and I recently bought ginger vitamins . All seems to work for a short while. Once she is able to start belching then the other symptoms seems to ease up. Her personal physician and stomach physician doesn t have a clue. It also doesn t seem to make a difference in what she eats. She has been in the hospital several times and they can t seem to find anything either. Please help!!!!!!!!! Any additional ideas would be greatly appreciated, since she doesn t want the expense of an additional hospital visit and it does not seem to help.