DR
                    
                    
                    
                    
                    
                    
                    
                        
                        
                        Hi, i have got the same problem as you.  Recently I discovered two small "holes" located toward the back of my mouth on the right side.  I must have been born with them. I only found them because i was determined to find the source of that horrible smell!  I only found them because after 2 or 3 days of looking and i noticed a white particle there.  i quickly grabbed a Q-tip and was able to grab it without dropping it down my throat (the holes are pretty far back).  Upon smelling this white particle (smaller than a pea) it smelled of fecal matter to my horror!  It had the consistency of a boiled potato. I am getting the nerve up to go to my dentist about this after all it's not like getting my teeth cleaned!  I have tried cleaning these "holes" with everything and nothing helps.  I was interested if you have these holes to?  Would appreciate if you get back to me.  Thanks!