Hi, I have the same problem. I have been fighting bad breath my whole life. Use evrything in the market. I now have to come to terms that no toohpaste or oral rinse will help my halitosis. My smell is fecal and comes from within. I am trying the program for TMAU and will see what happens. My dentist only gives me advice about oral hygine but nothing else. I have wasted time looking for the great cure for halitosis that comes from the mouth. Now I found this forum I have learnt so much and all the possible causes. I guess some bodies have different reactions , I don't know. But the same as you I haven't got fecal Body Odor or maybe I can't smell it. Good luck .
Yukisan