Girls, my nephew accidentally hit my 4-month-old child with a volleyba…

Girls, my nephew accidentally hit my 4-month-old child with a volleyball. My daughter cried for 2-3 minutes after that, then calmed down. She had some episodes afterwards. But she vomited, this is quite common for us. She fell asleep but woke up from crying. Did anyone have something similar? Should we go to the hospital? The pediatrician said to observe and go to the hospital if necessary.