Another possibility could be TMJ (Temporomandibular Joint Syndrome) where you clinch your jaw
muscles and grind your teeth, which could cause face, jaw
pain and wear away your teeth.
Or it could be mononucleosis, which gave me a sore throat, sinus/ear infection, fatigue, slight fever, headaches, blocked ears. The quick 10 minute test does not always catch it and they may need to do a blood test that takes several days.