Discomfort When Coughing/Sneezing

I don't have tinnitus but my ears are sensitive to loud sounds; they have been for years due to some environmental acoustic trauma.

My left ear has experience more damage from loud noise and when I cough or sneeze I have a discomfort. I think it's because of the pressure on the ear from the coughing or sneezing. Even swallowing causing me some discomfort. It can be very annoying.

I when to the ENT and he did a quick look in my ear and found nothing wrong.

Some people have mentioned that it might be Eustachian Tube Dysfunction but I'm not sure if that's what I have.

Do any of you also have discomfort like I do?