My bad breath Is caused by mouthbreathing at night as a kid because my room had mold in it or something like everytime i would be in my room my skin would itch and i would have stuffy nose so everytime when i woke up my throat would be sore and i would have dry mouth, stuffy nose hoarse voice but i didnt realize i was mouthbreathing at that time mouthbreathing gave me a bad breath and it caused me to become ugly because mouthbreathing as kid causes ur face to change like i would have crowded teeth, high palate, big nose, small jaw, no cheekbones symptoms of mouthbreathing im adult now and still have bad breath and even if i brush my teeth my bad breath wont go away