Hello can you tell me why i rock my head side to side i've done so for many years i'm 41 male i do have chronic anxiety?

Barring neurological: Disorders which a neurologist can examine you for, it may be a symptom of your anxiety disorder. We sometimes associate comfort or security w/certain places or behaviors. A therapist may help you move that rocking from your head into your much less obvious fingers through hypnosis or other strategies. Peace and good health.