Yes, I assumed the same thing. Because she had seen up close how terrible the effects of this virus can be, and had been so terrified, I am sure that a lot of this flooded back in that half-hour she had to wait after the shot. I like that she did this as a solitary activity -- I suspect that without any distraction of conversation, it became a very layered set of reactions (not vaccine reactions!). I am glad that parts of this year turned out well (election), because sometimes, like with this opening, we can see the weight of concerns that she carries with her.