I had the same thing a week ago! I had had neck surgery 3 months ago and worried it was a deep infection. My left ear hurt a lot especially at night. They looked in it and couldn't see anything. Ran blood tests and it showed I have allergies but no infection. So I have started back on Allegra and it went away. I had no other allergy symptoms so it was weird. But obviously allergy.
C4-7 ACDF - 6 " vertical incision:plate, 8 screws: spurring all levels & both sides, loss of disks, & vertebrate pushing on spinal cord and out of alignment.
Osteoporosis discovered after ankle fracture
DDD all levels / lots of herniated disks
Failed L5/S1 LD surgery - chronic pain & numbness
Hysterectomy (all of the above the past 6 years)
Migraines, poor immune system
Fit and active until 2013