Jaw pain or neck problem?

The nerves that supply the jaw muscles go directly into the "migraine centre". Often people will be told they have a jaw problem, trying splints etc, when in a lot of cases the over activity in the brainstem is causing the muscle over activity. The upper cervical nerves have a significant impact on this over active brainstem, putting the neck in the box seat to cause headache and migraine. In short, check your neck with techniques specifically designed to test the relationship with headache and migraine.