For a week or two after i got the first, the second dose of the vaccine, i was pretty anxious that, like, oh my god, how is my body going to react to thieaus? There are going to be some after effects, or whatever. Even though it wasn't that bad, it was way easier than the first. The second dose, i felt better yesterday, and i just woke up this morning with a headache. And could be completely unrelatedye, but because i'm a highly sensitive person, and so are you, we are constantly checking in with our bodies, noticing if anything is like, slightly off.