My mom hit her head approx 2-3 weeks ago on the top (freezer part of fridge) She has been fine never had any symptoms such as n&v headache etc. Approx one week ago she developed a stiff neck which has now switched sides and her head hurts where she bumped it, esp when she bends over. Is this something that should be checked out? She thought she had a sore neck from giving her four year old granddaughter a piggy back ride.