Hi, is it mutter to get the vaccine or get your wisdom teeth pulled on Thursday or Erev shabbos, because then it may affect your chiyuv of oneg shabbos if you’ll be in pain or sick the entire shabbos? Thank you
If you can have it done on a different day and not on erev Shabbos, that is what you should do, because it will affect your oneg Shabbos. However, it can be done on Thursday because it doesn’t usually hurt that bad the next day (unless you know that it will).
Kuntris Yad Dodi (Shabbos) question 14, Chut Shani (Shabbos) 1 pg. 73.