<human>: When ever I take a large gulp of water I can feel it going down my throat and into my stomach. Suddenly as i am breathing normally a bad smell araises from what i think is my stomach. I sense the smell when I exhale. It stays for a little while and then goes away until i take another gulp of water. Until now i dont notice it when i drink anything else. Only with H2O. This is something thats been happening to me recently. How come???
<bot>: HI. The smell which you are getting from the abdomen while Chat Doctor.  Another reason :This is called Foe tor in medical language. You have a history of blockage of one nostril. SO this can be Due to Chronic Sinusitis, the sinus can have pus which gives you the feeling of Weird smell. I would advise you to have a consultation with an ENT Surgeon, get Clinical examination done; CT scan of the Sinuses and an X-ray of the chest is mandatory. Get the treatment according to the reports. IF the CT scan is normal we can consider the possibility of a problem in the Sensory System and you may need an opinion of a Neurologist.