Pretty sure, they always follow the same pattern (throbbing one-sided headache, nausea, vomiting, repeat for 1-2 hours or until I manage to fall asleep).
I am thankful that it's pretty rare (every couple of months), is usually gone after 6-12 hours and no effect on my vision (unlike my mother, who also suffers)
I don't think it's ever been diagnosed as such by my doctor, however.