Hi, Im a 22 year old male, I´m 5.67 feet high and my weight is 156.5 pounds. My problem is that something I ate before Monday evening produced some kind of irritation in my stomach or guts, my feces are completely normal, but since wednesday evening I´ve been burping over and over, the smell of it is fetid and disgusting, I have had no pain whatsoever, I have farted a lot also. Thank you very much for your response. David.