If we go to a doctor or clinic for a vaccination, be it an influenza shot or a COVID-19 vaccine, we go with the expectation that it is safe.
We usually dismiss mild symptoms, such as headaches, fever, pain, and redness at the injection site, since we are typically informed of them beforehand and expect them to be transient in duration. Thankfully, most of the time, people recover from them and proceed with their lives as before.
