Hi sir, as your doctor says swelling with pain in side of neck with pain radiating to ears and jaw is because of infection of the lymph
node in neck.
Well regarding thyroid
, thyroid is present in middle of neck and nodules in thyroid are usually asymptomatic. Its called nodular goitre
It present s as swelling in front of neck but no pain.so do not worry about thyroid.
You can get a blood test
to see how your thyroid are function ing.