Well, I was watching a movie about car crashes, which had actual footage of car crashes. That means brains, intestines, and other assorted internal organs strewn all over the place. I fainted because of that.
When I was about 4, I fainted for a similar reason.
When I was 12, I fainted because I had a fever.
That makes a total of 3 faints, all explained.
The problem is, I recently took a tilt table test and my heart stopped for 10 seconds. That issue is complicated because I had not drank anything in 20 hours, which is a probable factor. This whole issue is becoming a huge mess.