I don't wish to sound downbeat, but just as a word of caution, and please don't be alarmed, but the relatively quick loss of hearing in my left ear was the result of an acoustic neuroma which required surgery. Have you been to your doctors about you condition? Its very rare (about 1 in 100,000) and is completely treatable, just to be on the safe side please see your GP.
https://www.mayoclinic.org/diseases-conditions/acoustic-neuroma/symptoms-causes/syc-20356127