Tight hip flexor musculature causes excessive anterior tilt of the pelvis… hyperlordosis of the lumbar spine… hyperkyphosis of the thoracic spine… hypolordosis of the lower neck with hyperextension of the head at the atlanto-occipital joint… forward head carriage… tight posterior neck muscles… headache.
While people who suffer from migraine are more likely to have TMJ disorder, people with TMJ disorder will not necessarily have migraine.
Acute whiplash injuries may result in dizziness due to irritation of the proprioceptors around the cervical spinal joints and muscles of the neck.
A tension headache is caused by excessive pulling force of tight muscles in the back of the neck that exert tension on their attachments on the head.
Greater occipital neuralgia is caused by compression of the greater occipital nerve, usually by a tight upper trapezius or semispinalis capitis muscle.