I am 64 yrs of age, 5'3", weigh 190 lbs. I was in an auto accident 9 days ago, suffering a concussion. My husband has been telling me that I have bad breath the last couple of days. What could be causing this. I still a large goose ege on my head, which I understand needs to be absorbed by the body, so I am still applying cold and warm compresses to help heal/ speed the swelling and edema. Major concern is the bad breath which is not normal.