Baby 5 days old. My 3 year old ds was lying beside her on the bed and unintentionally gave her a whack on her head with the back of his hand. She didn't cry but looked a bit shocked. Worried it was on her fontanelle. Trying to figure out if a call to the doc is warranted, really don't want to have to take her to out of hours surgery. Am I being totally precious or should I be concerned? Help please!