Hi. Very difficult to understand my this question (I have this horrid poo smell from my mouth every time upset stomach. I brush my teeth twice a day, use mouthwash, still I have this smell and decaying my tooth day by day. I am too embarrassed to even ask my friends or family to tell me my breath stinks. Please any treatment let me know. Thanks.) As all Doctors advise me to go to a dentist but I already do this I visit my professional dentist clear all my carries but in spite of this I suffer from such problem. I think acid reflux is bcoz when I wake up in morning my saliva is reddish brown and smelly that destroy my tooth. Please help me I am very upset wanna suicide.