Bad Breath Halitosis Forum

Since I was at school I knew I had breath and it has gotten worse.
I have tried almost everything that I can possibly do, clean my teeth with a good branded toothpaste with bi carbonate soda, gargle with salt, use dental sticks with corsodyl gel and floss tape, I flush each nostril with Nasal rinse, I drink tablespoon of apple cider vinegar in the morning too. I drink over 2l of water a day, don't smoke or drink coffee and don't drink much alcohol. Sometimes all this works for an hour or two then I can smell my breath. Most times it smells like rotten milk. Also when I press in the back of my mouth I can taste or smell poo, I used to sneeze out tonsil stones but sinse I have used nasal rinse regularly I don't get them anymore. I went to see ENT specialist last week and he couldn't find anything wrong, I've asked my dentist if I have any issues and they say all Is good in the mouth. I think then next port of call is stomach area, has anyone found this to be a cause of BB?
Cheers for reading and any advice please respond cheers M

I recommend you to visit a gastroenterologist, get your stomach checked.

Since you used to sneeze out tonsil stones I would go to a different ENT doctor for a second opinion.