You posted this six days agao. No replies yet, So I will pitch in. I would go see my ENT Oncologist right away. How long has it been since you had a PET scan? I was misdiagnoesed on my reccurrance, was told it was stomatitis when it was stage 4 cancer. Go get it checked.

SCC Left Tongue/Tongue Base 6 times 2000-2007
Radiation 70Gy/ Cisplatin-Taxol 2007
ORN Left Jaw 2008-2010
Left Mandible BMP Graft Reconstruction 2011
Recurrent SCC Tumor Oral Tongue/Tongue Base 2021