Had my 1st one (AstraZeneka), experienced a lot of white noise shortly afterwards, like static from a TV, and still experiencing it now but not as intense, but noticeable when sitting in a quiet room.
I also had a strange phone call from NHS, they ran me out the blue 4 times, I missed the first 3 as I was asleep, and this call was several weeks after getting it done, and the woman asked me if I could tell her what arm it was when I got my vaccine! I thought afterwards how come that was so important she rang me 4 times that morning/afternoon, you would think they were busy doing other things.
I then started second guessing things, is the vaccine really something to control us in the future, and was that call a check-up on something based on the data I was inserting from my mind into their system.