関連ワード:  why do cats spin before lying down    why do cats turn before lying down    why do cats spin around before lying down    why do cats and dogs spin before lying down    why do cats spin in circles before lying down    why do cats turn around in circles before they lay down    why does my cat spin before lying down    why does my cat spin in circles before lying down    why do cats rotate before lying down    why do cats circle before lying down