I'll also vote for "go to a doctor."
I really don't think people normally just pass out.
The closest I'll get is from the extreme blood pressure drop that comes from needles.
I had a blood test done at one point and I told the nurse I would need to lie down. "Nah, just don't think about it, it'll be fine."
Tough to not think about the equivalent of a 2" horsefly nibbling on your arm, but sure, fine, will try it.
I started to get dizzy and told her I was probably about to throw up due to the associated nausea. She finally looked up at my corpse-white face and saw that I wasn't joking, and abruptly hustled me over to a bed in another room.
Still didn't pass out though.
Or following a chest-pain scare, I was given a tiny nitro tablet. That also resulted in one hell of a blood pressure drop. Even laying down, my vision started turning to black, and I could hardly move my arms, but they said they never lost me.
Yes, I'll vote "unexpected loss of consciousness" as being something to get checked out.
The first thing I think of after unexpectedly passing out is getting behind the wheel of a car.
Preferably at night with the headlights off. Those things will just draw too much unwanted attention.
Well, thanks to <numerous reasons in a complex situation, and potentially absurdly greedy insurance companies> I can no longer afford insurance.
And thanks to my anger about everything sucking I can not get hired for a job.
In my case I would just lay there and contemplate dying.
My coverage improved slightly after the ACA. More preventative procedures were covered 100%.
Still costs the company more, but I think that's attributable to more than one person.