hello Kulbir and welcome to HCM,
Since you have asked a very specific question, i shall get straight away to that. You have the following tests for checking if your ear or the eustachian tube is blocked or not:
1. Audiometric analysis with special emphasis to impedance
or high resolution CT
of the temporal bone
3. Tubal endoscopy
5. General examination of the drum during siegelisation
these are some of the common tests done.
You may consult your ENT surgeon to undergo these test to arrive at a final diagnosis and get treated accordingly..
Dr Sriram Nathan