Hi! I'm having problems with my breath. I've tried licking my wrist & scraping the back of my tongue but I don't feel any particularly bad smell, it smells a bit sour, but nothing extreme. However whenever I'm in a room talking to people they discretely hold their noses. People smell my breath from 6 feet away. I've visited the dentist twice (my teeth are in perfect health, never had a cavity) and been to 3 ENTs, but they can't find anything wrong so I'm stumped.