Funny you say the bad parts - they’re all pretty nasty in their own way and the ocular effects make it difficult to do stuff. I always think that the headache, as painful as it is, is the part I can deal with as at least I can get on with stuff.
I’ve had nausea a few times but generally just vomit and then it’s gone. The worst for me (and I don’t always get it) is a general feeling of confusion, whereby words don’t seem to make much sense. Even my own thoughts and speech are either jumbled or seem that way to me. This can last a couple of hours during which time I can’t really do anything :-/
That all said, I’m grateful my migraines are relatively infrequent, especially when I hear of people having them regularly.