A posture headache is muscle and joint-driven pain from neck strain, while a migraine is a neurological condition involving specific brain and nerve pathway changes, and the two respond to completely different things.
A neck reset is a short, targeted sequence of positional changes and muscle release techniques designed to interrupt the tension pattern behind a posture headache within minutes, instead of over days.
A posture headache, often called a cervicogenic headache, is head pain caused by muscle tension and joint strain in the neck, most often from forward head posture and rounded shoulders.
Thoracic mobility for rotational athletes is the mid-back's capacity to rotate independently of the hips and lower back, providing the range needed for a full, powerful swing, serve, or throw.