Hi I Had An Endoscopy On Tuesday And I Know

Hi I had an endoscopy on Tuesday and I know they put air in you but I have trapped air for the past two day and its painful it feels like im full in my stomach and have low apettite. I fell relief when I drink soda and I burp but its a short relief. I feel better when I lay down but I am working which requires me to sit in front of a computer. please help thanks