When I would get mine, friends, family, coworkers all would say, “what’s wrong Bob, you got that look. Migraine again?” And they’d tell me to go lie down. Take it easy, take the rest of the day off. I’d tell ‘me “all good, just gonna lean back here with my eyes closed and enjoy the light show”. There was never any pain with it. Just lots of pretty flashing lights.
Although, I had to pull over on I-95 because it was effecting my vision enough that I couldn’t see the side of the road. A minute after pulling over I was effectively blind for about 5 minutes. That was a few years ago. Never really had them since.