They'd just appear out of nowhere

https://lemmy.world/post/34625763

Nope but I see these when I’m getting a optical migraine.

Yikes, you’re actually seeing that?
It doesn’t do what I see justice. They are often beautiful. When they first occur it causes a blind spot. The zigzags are a rainbow of shimmering color. They go away after a hour or so and I feel lousy if I don’t have a headache. If I do get the headache with it I have to find a dark room and try to sleep.

Sorry to hear that, it sucks

Well at least you get pretty rainbows

Its a pretty rainbow that is forever at the edge of your vision. You can’t look directly at it.
Wait, there are people who get migraines without the headache‽ I just get the agonizing ocular pressure and occasionally nausea
Yes, my migraines are mostly “silent” these days. As a teenager, I just had the headaches without aura, but that changed with age. Nowadays I get all kinds of weird and uncomfortable pro- and postdrome effects, like ocular aura, but rarely pain. I have a family member whose only migraine symptom is a crippling stomach ache. Migraines are super weird.