I got my first Pfizer shot on March 28. I posted in the first or second page of this thread the details--no side effects except for a mild pain at the injection site and tinnitus 24/7. By the time I did my research and talked to my doctor, I still had the tinnitus but it seemed somewhat faded. The doctor said if I had no hearing loss, he'd recommend I get the shot.
I decided to get the second shot (on April 20). My arm was a lot more painful this time, but I could sleep. The tinnitus didn't change until about 5 hours after the shot and it got a little louder. I also noticed my ears felt "warm" inside--not hot, not painful--just warm. That also passed. The tinnitus is back to the faded level, but still 24/7. I have hopes that it will go back to my usual now and then in a few weeks or months. I've had both the kinds I get, high pitched almost like a dentist's drill and the pulsating one. I feel normal today coming up on 48 hours after shot.
As far as a 3rd shot, that is being debated now. I saw on the news that when asked if everyone needs a 3rd shot, Dr. Fauci said "Not so fast." Drug companies should not tell us to get treated with their product. We need to study and gather data. For those who think this 'booster" is due to this first set wearing off, it's not, it's to resist the new mutations that are happening because people are still out maskless, in large crowds, and airline flights are happening from badly affected countries. And so far only 1/3 of the US is vaccinated--and we need 3/4 to be vaccinated. Viruses mutate, which is why you need annual flu shots. So if the CDC says get a 3rd shot, I will. I feel blessed not to have the loud and horrible type of tinnitus, but decided I can live with what I have until I die if I avoid the possible horrible long-term effects of getting COVID-19.