I am a 50 y/o female with a 10 year history of off/on upper abdominal bloating. I had my gall bladder out about a year after it started, but did not affect it. In the last couple of weeks, it has gotten so bad I get short of breath and feel pressure through my neck and face. I was told I had a small hiatal hernia, but last endoscopy and colonoscopy said everything was fine. I have alot of air I burp up, but do not hardly pass any rectal gas. It is like I am making air in my small intestines and it won t move. It feels like a balloon blowing up just inferior of the sternum. Sometimes it feels like it is blocking my great vessel circulation in my abdomen. Do you have any ideas?