This is a site for metabolic odors, some of have talked about BO and about having it coming from the throat area and so forth, this site gives lots of information and also gives information regarding testing. For those who have been tested from doctors and have gotten no  answers this site may be able to help you to get some answers, this is only when you've tried everything and have had every test and  are still having problems.  This is  something you can take to your doctor. In some states they may have these test for metabolic disorders.http://www.meboresearch.com/bodyodor.html  And you can listen to Cheryl's story  http://www.bloodbornebodyodorandhalitosis.com/2009/06/mystery-diagnosis-episo...