Portland, listen to the advice that has been given to you. Lucky you.
Kris did have pain, but it was ear pain. At no time did he ever have pain in his throat or in his base of tongue. He also developed slurred speech from the lymph node pressing on his hypoglossal nerve and his tongue deviated to the right from the hypoglossal nerve palsy. You do NOT have any of these symptoms.
Kris's tumour was seen on MRI scan. Nothing showed on your scan.
Please be reassured. Go and live and enjoy your life.
Tammy

Caregiver/advocate to Husband Kris age 59@ diagnosis
DX Dec '10 SCC BOT T4aN2bM0 HPV+ve.Cisplatin x3 35 IMRT.
PET 6/11 clear.
R) level 2-4 neck dissection 8/1/11 to remove residual node - necrotic with NED
Feb '12 Ca back.. 3/8/12 total glossectomy/laryngectomy/bilat neck dissection/partial pharyngectomy etc. clear margins. All nodes negative for disease. PEG in.
March 2017 - 5 years disease free. Woohoo!