Swollen lymph node after Stylage M lip filler - normal? 5 days p.o.

I received 0.8ml of stylage m. Very minimal swelling, pain and bruising. 5 days have passed and everything feels great and healed (except very slight tenderness at injection site) My only concern is my right lymph node under my ear is VERY swollen and tender. It’s been swollen since the day after I received filler (total 5 days) with no improvement. Should I be worried ? I wasn’t sick at the time of my appt and I feel totally fine except for the one swollen lymph node. Help - thanks