Being a child of the '50s and a recipient of many vaccines that prevented numerous potentially lethal childhood diseases, I enthusiastically accepted the Covid vaccine. But following the first booster, I developed a heart arrhythmia (which I did not immediately associate with the vaccine) and after my second booster, a very low heart rate (~ 40). I voiced my suspicion that it might be from the vaccine, but my doctor said she could find those symptoms in the literature. But I skipped the next two rounds of booster and both symptoms eventually went away. My doctor now agrees that the vaccine was the likely cause (which she entered into my record, and she concurs with my decision to forgo any future boosters.
Looking back (hindsight is great,) the vaccine was an unnecessary risk. I had Covid twice. The first time, pre-vaccine and the second time after the first booster. The symptoms the first time were a scratchy throat and a slowly rising temperature (to 102) which quickly (3 days) dissipated. The second time sratchy throat for a couple of days and no temperature. I wouldn’t have even suspected that I had it if my wife hadn’t insisted that I test for it. The reality of Covid is that it was only mortally dangerous to people who were otherwise unwell. As an evolutionary mechanism, it increased the overall health of the species.