Bringing this thread back with a little additional info -
What you described almost mirrors my experience in my early/mid 20's - Temporary hearing loss, increased tinnitus, trip to an ENT resulted in steroids and a diag of nothing to worry about.
Fast forward a couple of years (like, 2, if that), during a pre-employment medical battery that thankfully involved a hearing test, which showed there was a profound loss of hearing, which raised doc suspicions, led to an MRI, which then led to well...here lol.
If you can, get an MRI just so you know for sure. Just sayin...