Hi ,
I personally did not have any changes when I got either of my vaccine shots. My symptoms are acting the same as they have been for the past 7ish years. Although notably I also had zero side effects from both shots, when many of my peers and folks in the same age group as me were reporting at least 1. I don't know what that means, if anything, but I hope this is helpful to you. As I seem to get sick really easily and have members of my family who are immunocompromised, I do plan to get a booster.