I have a classmate who experienced pre-syncope two weeks ago. I was the one who accompanied her. And while we were about to move out from the elevator, she suddenly complained that she felt dizzy. I tried to hold her enough for her not to fall on the tile garage floor.
Good enough that I saw our big-bodied male classmate. I asked him to carry that classmate of ours and bring her in the ER instead.
After no more than two (2) hours in the ER, where she was given oxygen mask and some medications and asked for laboratory exams, we went home.