Glad your experience was fine. I am participating in the Moderna vaccine study and learned a couple of weeks ago that I had received the vaccine rather than the placebo last year. Only slight soreness like from a tetanus shot after the first shot, less after the second. Seems like troublesome reactions happen but shouldn’t prevent most from getting the shots.
Most people buy home insurance, not because it makes the house any better, but to survive a catastrophic event.
All vaccines are same thing. They are meant to give you the best chance of avoiding seriously getting sick in future.