I had faecal breath odour for YEARS, never had a girlfriend till now. Talked to many doctors who took my money then show me the door....I finally had a friend who used to suffers bad breath, send me a eBook he bought 5 or 6 months ago he ask me how his breath smelt and I didn’t smell a thing. He said the eBook amongst much else had him stop eating dairy food/ soft drinks and coffee/tea and is about 30 pages long so it covers every possible cause. So I’m like reading it and doing all the stuff it says to do. Thinking this has to be bull. But after a few days my tongue started turning red and felt nice. I worked up the courage to ask a friend how my breath smelt and he’s like I don’t smell anything. Now I’m thinking all those years of humiliation and I could have solved it ffs! There’s a site about it called OralTech Labs. Just google it.