I pinched my nose and clear sinus congestion -now have fullness in left ear, slight ringing, mild pain. what percent chance do i have perf tm?

Almost zero: Under normal circumstances the eustachian tube allows drainage of fluid from the inner ear to the nasopharynx, behind nose. When the nose is pinched and pressure applied, air and sometimes fluid ise forced up the eustachian tube. This can result in feeling of fullness, ringing, and/or pain due to the increased pressure applied to the ear drum (TM). The chance of perforated TM is