Are you seeing an ENT or an Audiologist? ENT is an MD, I don't know about an audiologist. Whichever, I am sure they will get you an answer. I know this advice is probably useless, but try not to think about it. There is nothing you can do except protect against further issues. Until you get to the Dr, there is nothing you can do except to wear hearing protection if you know you will be subjected to extreme noise.