Bad Breath Halitosis Forum

Hi everyone, i have some updates to tell you.
Today i tried gargling with hydrogen peroxide, at first my tongue turned white but it could be easily washed away. And now (3hours have passed) i can only feel weak smell from my breath and saliva. Actually my saliva would smell like shit now without ...

ENT said that my tonsil looks fine. He couldn't see any tonsil stones and i have never had tonsillitis, too.
I think that the strange sour test comes from my saliva.
And again.. My saliva around the back portion of my tongue smells disgusting all the time ):

I have got halitosis for about a year, im now 20.
I have good teeth and already taken wisdom teeth out.
Last week i went to the ENT, he checked my Xray of the sinuses and it was normal.
I dont have any problem about my GI tract except gastritis for only 2 times since i was born so i dont think that ...