Unstable fetal heartbeat does not necessarily mean that intrauterine distress has occurred. If the doctor does not give additional instructions and there are no symptoms for the time being, you can not worry excessively.
However, there are a few children who have already suffered from hypoxic-ischemic brain damage in utero, but the symptoms are not obvious at birth, and gradually develop signs and symptoms of neurological damage such as abnormal muscle tone and convulsions in the weeks or months after birth. It is recommended to care for the child by observing the baby’s mental state, milk intake and basic conditions such as growth and developmental milestones, and if there is excessive or flaccid muscle tone in the limbs, frequent episodes of convulsions, excessive excitement or drowsiness, etc., you can visit the pediatrician.