My wife was going through a period of about a year where she was fainting unexplainably a few times. We were concerned about epilepsy, but the neurologist said it was just synapses or syncope.

I remember as a kid there were classmates who would faint. My mom used to say they must not have gotten enough to eat for breakfast.

One time it was from not eating all day and then standing in a hot garage. A neighbor was showing me ceramic pieces that she had just fired from her kiln, it was in the month of August and the garage was overheated. I probably needed to have had some salt and got a bit dehydrated too.

Could be any number of reasons from being overwhelmed to serious medical conditions.

As a kid I fainted from heatstroke. I was just too hot.

I've known people fainting because they were drunk. 🤷🏻‍♂

My friend and I did deliberate fainting where you bend over, take deep breaths, then you stand up straight against a flat surface and your friend pushes on your chest.

I was so disoriented when I came round I didn't know where I was but I put my shoes on and started walking home. I remember my friend asking "Why are you being gay?"

Low blood pressure. I only fainted once, since then I knew exactly what warning signs were and managed to prevent it.

I never went to the doctor for it, but it used to happen quite a bit when I was young. Not really sure why but maybe blood pressure bottoming out?

ME/POTS... or, to be more specific, POTS. Seems like POTS likes to try to throw me on the floor regularly.

Laughing so hard I couldn’t breathe. 😂

I think it is stress. I usually feel really sick and dizzy then I black out and wake up and throw up

Low blood sugar, low iron, and very heavy periods all make me faint.

Stress and angst

Not eating

Low blood pressure

Low BP

Low blood sugar

always been some sort of stomach pain

Blood being taken.

low blood sugar level

Blood glucose level below 54 mg/dL (3.0 mmol/L).