What is eustachian tube dysfunction, bilateral?

As follows. The main symptom is muffled or dulled hearing. You may also have ear pain because the eardrum is tensed and stretched. Other symptoms that may also develop include a feeling of fullness in the ear, ringing or buzzing in the ear (tinnitus) and dizziness. One or both ears may be affected. See ENT doc to manage this problem.
Blockage. Blockage of passageway between throat and ear bilateral refers to both sides check with an ENT for confirmation and treatment.