to worry

verb
  1. To feel or express concern or anxiety about a potential problem or situation. verb
    She began to worry about her son's safety when he didn't come home on time.
    He tends to worry excessively about his health.
  2. To cause someone to feel anxious or troubled about actual or potential problems. verb
    The news of the storm worried the residents of the coastal town.
    His lack of preparation for the exam worried his parents.
  3. To harass or bother persistently, often used in the context of animals worrying livestock. verb
    The dog would worry the sheep by chasing them around the field.
    Farmers often face issues with wolves worrying their cattle.