Mine are panic attacks in the moment of something. Unfortunately I lose my hearing, sweat profusely, get dizzy and faint. Usually I wake back up within two minutes. Then I lay on the floor. Have never found a consistent trigger or a way to stop it because what happens is so embarrassing that I start panicking about it as I feel it start to happen. I’d say it’s 4-5 times per year. When I can, I put myself on the floor before I pass out.