I have a weird.. "aftertaste" is how i tend to describe it, and I dont know what its caused from. I cant tell where its coming from, but usually it comes and goes. My diet haddnt changed in any way when it started coming up, and i've found that it usually comes around when i sneeze sometimes. Other times it just kind of shows up. It doesnt taste/smell good. I can 'taste' the smell, and its hard to describe-- sort of stale i guess. Its not from a tooth I know, and I never know how to talk to my doctor about it :/ Does anyone have any ideas on what it is?