I would like to add that I measured my blood pressure at home - it was 109/67.

And I did have another minor head impact three weeks ago, which I just remembered. I was hugging and comforting my younger sister since she was crying over something and during that time her head hit mine repeatedly since we were huddling close and she was sobbing. I didn't think much of the impacts and kept pushing them away since I wanted to support her and eventually I also forgot about those.

So technically all of my previous head hits from a month ago are coming back to me and scaring me. The backpack hit and the one from my sister are the ones with most force.