Forward head posture keeps a muscle called the SCM (sternocleidomastoid muscle) in a chronically shortened position. This muscle runs from just behind your ear to your collar bone in a diagonal direction. These trigger points will refer a headache to the front of the head, earaches and/or dizziness.
SCM trigger points may also cause a migraine, a sore throat or pain on swallowing, ringing in the ears, tearing of the eyes, visual disturbances or vertigo. So if you have had some of these symptoms and your physician has not been able to find any cause for them, you may want to have someone assess if you have trigger points.