関連ワード:  why is my cat curled up in a ball    why is my cat curled up in a ball sleeping    why is my cat rolled up in a ball    why is my cat curled up like a ball    why does my cat curl up in a ball when i pet him    why does my cat curl up in a ball when sleeping    why does my cat curl up in a ball next to me    why does my cat curl up in a ball on me    why does my cat keep curling up in a ball    why does my cat curl up in a tight ball