That 2nd shingles vaccine kicked my butt. I was sick for a week. But that was several years ago. In 2023, I got my covid and flu shot at the same time. Again, problems for several days. High fevers and horrible dizziness. So this year, I seperated them. I got the flu shot first, with no problems. Then the covid booster. And a fever and feeling horrible for a few days. But at least I know which vaccine was the problem. Yes, having this reaction is better than getting a severe covid or shingles case but it was still very unpleasant.