Me personally, and not in any way because of some like "personal feeling" this way or that way, I usually just shut up and do mostly what im asked to from Dr's
Taking a flu shot I wouldnt overthink myself honestly. And, its a flu shot at the end of the day. Like anything, flu oriented or a vaccination, it comes with risks and we all understand that, and most take it and not worry. Its a huge math model, 150 Million shots taken if there's 100 life threatening side affects, it happens I personally Know that and dont want to hear more about it maybe lol. But you know and accept that risk, and a lot take it generally.
This whole Covid ordeal is out of hand imo, and Im not in any way shape or form concerned about some not on the market Vaccine myself. Or Covid for that matter, so ill probably end up waiting. Anyway its an interesting subject, and one imo that is still being blown way out of control. Ive had my own real world things to worry about, im not worried about lol a flu virus really, and Ive been tested, its getting annoying.