When im sitting still i sometimes feel like my head is swaying very slightly back and forth for a minute and goes away?

?mild tremor: Do you have a family history of head or hand tremors? This could be an early sign of essential tremor which often runs in families. Other early signs are hands shaking while holding a cup of coffee or tea or writing. Observe for such symptoms and if present, medications are available to treat them. At present your symptom doesn't warrant treatment, but avoid nicotine or excess caffeine.