Tetnus Shot

I just received a Tetanus and Flu shot Tuesday, September 19th. Is it normal to receive a swollen lymph node after these shots? I have a swollen lymph node near my left shoulder blade. The tetanus shot was given in my left arm and the flu shot right arm. I called my doctor's office and they told me sometimes this happens. However, it is very sore and I was told to take Motrin for 3 days. What should I do? Or is this truth? Thanks for your help