Including link to your other thread, because I believe that it is relevant: Migraines: How is it handled at BS?
Whether it is “truly the grind” is a bit subjective, I suspect.
Of greater concern should be whether all the other puzzle pieces fit. I get liking the idea of a taking on and mastering a challenge that few can, but… Please consider looking at alternatives. There are plenty of kinder, gentler schools out there that still offer their students an excellent education.