Swollen neck after ear infection?

I had an ear infection and if was painful to swallow for a few days. I finished my treatment and my throat and ear seem fine now. Now I'm starting to get swelling/tenderness in throat/under jaw as well as shoulder and arm pain. I know it's normal to get swollen lymph nodes during infections but why would I get swollen lymph nodes after my infections. Is this normal?

2017-04-11T00:37:33.809Z