I received the Covid 19, 3rd vaccination "Booster" on 12/10/2021 sometime after the noon hour.  It was about painless at the time and afterward.  However perhaps that night or the next I turned on the TV to watch a movie and was aware of a "ringing in my ears" or tinnitus.  Its like static you might hear if you try to manually adjust a radio station with a dial and can't get it exactly on the station.  A sort of hissing sound that doesn't go away even when you turn off the radio or TV.  Sort of like if you got a bad cold and your sound is kind of muffled and if you try to swollow sometimes you can hear right again and it clears up.  But it hasn't and after  a few days I called an EENT Specialist and received an appt with him on 12-28-2021 for his exam & evaluation. The result as I understood it: there was no defect in the aparatus of my ears & hearing that would cause Tinnitus, that the cause of Tinnitis is usually unknown, and despite some scammers claims to have some product to heal it or make it go away, there is no cure at this time and it will not likely go away. So he was very blunt which I appreciated, and I have accepted it and am not wasting time searching for a magic pill or cure. BUT when I heard Dr. say recently on TV, just several months later, that doctors were studying that 1 in every 40,000 people who had the vaccination were experiencing or complaining of Tinnitus or hearing loss, it was important for me to report it also. (That's about 125,000 people presently) Of course as an individual I realize I cannot prove to a scientific certainty that my Tinnitus is the result of the Moderna 3rd vaccination "Booster" I can say that prior to it, I had no hearing difficulty or Tinnitus. But if they eventually come to a conclusion that the vaccination does or did impact peoples hearing, likely they will study how & why it did, and hopefully how to stop this negative effect. If they do such a study I would like to volunteer to be in the study. Possibly though there is no cure or remedy now, with perhaps hundreds of thousands of people impacted, medical curiosity may steer doctors & pharmasutcals to look into it and study it. In conclusion, I received the Moderna booster on Dec 10, 2021. The tinnitus came likely almost immediately or the next day afterwards. I was able to see EENT specialist in about 2 weeks. I also had an appt and yearly physical with Dr. office (primary care doctor) and I am reporting this to Vaccine adverse Event Reporting System, online. I informed Dr. and Dr. of the Tinnitus at the time of my appointments, but I do not know if they reported or even knew they should, because there is not much info about it available. But I am reporting this to VAERS today 4-14-2022. This is the best I can do at this time and I hope someone will look into it as a lot of people seem to be reluctant to get the vaccine and I am beginning to see why. My immediate problem is that although at 83 I enjoy pretty good health, I have had 2 vaccinations and a booster, I am now due for a second booster and I am afraid if the Moderna vaccine did affect my hearing before in the December 10 vaccination, could a second dose make my hearing or Tinnitus worse? I don't know but I am worried.