You mentioned you have a trusted ENT you have gone to so that really is the best course of action and source of information. Not to discount what others have said but there are so many things that could impact hearing, getting tested for some of the physical aspects and then following up with an audiologist to see if you have permanent loss is really the best thing you can do.
I am soon to be 49 and due to hearing loss in the the family, had to get my two hearing aids when I was roughly 35 years old. Best thing I ever did.
Not being able to hear things without having them repeated multiple times, doing the mumbled nod when you can't understand people in meetings, the anxiousness that comes along with not being able to hear well, etc. are all things that forced me to get them at a younger than normal age. (And yes, I have two...many people need two but only go with one for the 'worst' ear.) The day that I got my first pair and heard things I hadn't for a few years was just a 'wow' experience.
(I also had/have bad tinnitus so I would "joke" that I can't hear but I never have a moment of silence. Heading aids help with tinnitus too.)
Hopefully you don't have permanent loss but if you do, don't hesitate to get hearing aids as soon as possible. They are well worth it.
This is why I hope to one day get some Salks. It would be nice to have something that sounds so good that they breakthrough the barrier of hearing loss, albeit with the help of hearing aids!