Ear symptom and dull aching jaw pain can be causedby temporomandibular disorder. Swelling can be a patotid gland tumor or acute infection. Swelling is generally not a presentation of tmd.
I just got off a really strong round of antibiotics so I can not imagine that it would be an infection. Would this still be possible?
Your description appears to be related to infection. Seeing an oral surgeon to investigate the source of infection is advised.