E.F.
Hi! I know how anything abnormal with our kids can bring us a huge dose of anxiety. This incident, most likely, is nothing you need to worry about. Lymph nodes' function is to filter out things in our sysyem that do not belong. Generally, lympth nodes become swollen because they are full of bacteria etc. Vaccinations are low doses of a virus. Your body recognizes it as foreign, builds up an army of antibodies against it and creates memory cells so if you come in contact with the virus again your body is ready to kick its butt. Being that your daughter recently got vaccinations, the nodes are probably just swollen from filtering out the foreign 'stuff'. However, it's probably a good idea to have the doc take a look to be sure and to give you peace of mind : -)
E.