I have a strange question: Sometimes when I cough or sneeze, these little roundish yellow things come up from my throat. Of course, I spit them out. And as gross as this may be, it is NOT mucous- I promise. So, what are these things? I don't know if they are actually IN my throat, that is just where they come from?! I get these when my allergies are messed up and alot of the times when my throat is itching. Thanks in advance!