My baby 9 months old fell off from the bed.. No signs of impact on her head however she is unable to move her right arm swiftly like she used to and she is unable to lift her arm upwards however she is moving it slightly...She unable to crawl perhaps she is unable to put strength in her injured arm. I am worried and had contacted the local doctor. He asked to monitor baby for next 24 hrs... how can I make sure that her arm is fine?