3 days flu, sore throat, body aches. felt better, now temp 37.5, 24 hr worsening headache, severe ear and jaw pain, pain meds don't work. what cud be?

Sinusitis or Otitis?: It is not uncommon to develop a bacterial sinusitis or otitis media infection after initially developing a viral syndrome. Usually the viral symptoms begin to improve, then a secondary bacterial infection ensues. Seek medical attention to be evaluated to determine if you have a sinus or ear infection or other etiology for your symptoms, and to determine if you would benefit from antibiotics.