Thanks for writing to us.
Pressure in ears as well as numbness
in lips occur due to-
T M J dislocation or sinusitis
Periapical infection due to grossly decayed tooth can also cause numbness of lips.
I would advice you to get a thorough clinical evaluation done by a dentist
Infected tooth has to be extracted or restored.
Meanwhile,maintain oral hygiene
Avoid spicy foods.
Also consult an E N T Specialist for further reference.