[user104658]

The question I suppose is only are they actually migraines. Because it's correct that you can't really work with a migraine - it's not just a "really bad headache".

If you have a physical job it's likely to affect your balance and coordination so simply not safe. If you have a desk job, it's likely that your concentration will be so fogged that there's no point trying to get much done (and depending on your job costly errors might occur).

I've had migraines before, thankfully only 4 or 5 in my whole life (first one maybe 10 - 12 years ago) and several years between them. I did once have one where I went mostly blind lol (vision was like a small peephole through a massive grey sheet, is the only way I can describe it). Not a pleasant experience.