Hi, what you are experiencing could be alcohol intolerance. These symptoms are generally less serious and are limited to digestive problems. If you have alcohol intolerance, you may be able to take small amounts of the offending agent without trouble. There could be many reasons for this, like IBS, lactose intolerance, celiac disease and sensitivity to the components. The reason is not fully understood. Regards.
My son was also unable to burp. Fortunately, I found a doctor who has discovered a solution. He is in Illinois and his company is Bastian voice Institute. His name is Dr Bastian. He will work with your ear nose and throat doctor and walk him or her thru the steps to alleviate your problem. It involves a Botox shot in your upper esophageal sphincter. It is a blessing for my son to be done with bloating, flatulence and gurgling in his throat. Good luck to you!!