I get the coughing too. All People I talk to or get near start coughing. I used to think that "oh it's allergy season" and everyone has something going on with allergies. But now I read that you have that "people coughing" around you.
Another strange that happened to me is that when I had sex, the smell of my husband's semen would come out of my teeth and mouth. We are divorced now and I don't know if it is related to my halitosis or Body Odor .
It gets worse when I eat meat. I understand that the anerobic bateria feed on protein and then turn their excretion into feces smelling. I've gone through fish smell, urine smell, feces smell. People hint at me about flossing my teeth and brushing my teeth. I just get depressed because I've had my tonsils removed, I've bought into all these products that claim to fix halitosis, I've bought a nasal irrigator, toothpastes, mouthwash. I even went to the dentist and doctor and they say they cannot smell anything. But, strange how everyone else I come into contact with move away, cough, make faces, put their hands over their nose, and all this happens after I just spent half an hour brushing flossing and gargling.