Neck Pain and Episodic Migraines.

Nearly 500 migraine headache sufferers were asked to track the presence of neck pain in relation to a headache episode to determine if it preceded the migraine or occurred at its onset. The researchers found 69.4% of participants reported neck pain either before or during a migraine episode. Of those, almost half had neck pain in the hours before their headache manifested. This suggests cervical dysfunction may play some role in the development of migraine headaches.
Journal of Headache and Pain, September 2015