There are hundreds of different types of headaches, and I can't address them all here (in other words, this article is not for you migraine sufferers; go see a doctor). The vast majority of headaches I treat, however, are cervicogenic, meaning the pain is felt in the head but originates from the cervical spine. The second most common type of headache I see comes from compression of the trigeminal nerve, which innervates the face and muscles you use during chewing. Here's how to tackle these two.