Usually I don’t really feel any vaccines, maybe a bit less energy the day after.

But one of the covid vaccines (I think the one for omicron) hit me like a ton of bricks, I was passed out on my bed for a good 24 hours and felt like shit for a couple of days. Heard similar from other people. But with another covid shot I felt nothing where my girlfriend had the worst headache for a day.

So it depends as always. One day of being sick is so much better than getting some of the awful diseases I’ve been vaccinated against.