the most horrible odor

I had bad smell from nose when im nervous for 10 years.it smell like feces.

the smell spread in a STRAIGHT way.when im in a classroom, at a time only one classmate could get this odor,never two or more people get the odor at the same time...the strange smell have been proven by many guys who know me..they are confused too.

does anyone have similar condition?

[National Jewish Health]

This type of smell can come from excessive dryness of the nose.  The dryness can be relieved by the use of nasal washes along with the frequent use of nasal saline 4 to 6 times a day.  To learn more about this technique please read our nasal wash treatment information by copying and pasting this address

http://www.nationaljewish.org/disease-info/treatments/alt-ther/nasal-wash.aspx

into the address window of your internet browser.  Share this information with your doctor to see if you would benefit from this daily treatment.