I get migraines, the type with vision loss and scintillating scotoma followed by a severe headache, but thankfully I don't get the nausea or vomiting that some migraineurs experience. Sadly I've never been able to identify a trigger for my migraines, as they only happen a handful of times per year, and they don't seem to correlate with any environmental factors as far as I can tell from my records 🤔