Weogo, hopefully you've found an audiologist by now.
This link is not a substitute for a proper hearing test and analysis, but my girlfriend sent me this a couple of months ago - when my left ear revolted, and replaced intelligibility with ringing and hypersensitivity to even moderate sound levels - and it does a good job of tracking hearing loss by frequencies in each ear.
Use headphones to take the test, since you can't get the baseline quiet enough if you're using the computer speakers.
Take an Online Hearing Test | Online Hearing Test