having had bronchitis ending two weeks ago i awoke two days ago with an awful smell coming from[i think]behind my nose/lungs no amount of brushing my teeth,flossing or mouthwash helps as its not coming from my mouth.i always suffer with my sinuses with illnesses so it may be an infection any hope this will pass without a trip to the docs?im taking sudafed but its really making my life hell feel like i have dog breath!