I have the same problem, but for some reason when swallow my mucus it kind of goes away, but not for long. I have seen a little bit of tonsil stones in my throat and was wondering if that's the reason for my halitosis.I have been going thru this after moving to United States. I had started noticing this after a doctor prescribed me some medicines when I was around 8. It's extremely embarrassing I can't express myself, I'm extremely self conscious! Please help should I talk to a regular doctor or a mouth throat specialist