I have this when I'm not feeling mentally well. The visual noise is actually a sign for me that I should be extra careful to be nice to others because it's not them who are more annoying today, it's me.

[–] PaintedSnail@lemmy.world 3 points 2 days ago (1 children)

https://my.clevelandclinic.org/health/diseases/silent-migraine perhaps?

[–] fancy_pants@reddthat.com 3 points 2 days ago

you may see bright lights, wavy or jagged lines, flashing dots or sparkles

I wouldn't describe my symptoms like this but I need to read more about this in my native language. Thanks!