I also have migraine with aura. There are visual effects but also when I am looking into the mirror I can't see half of my face and give this is a wrong perception of reality you might consider it a hallucination?
When I have aura it's always morbidly fascinating to me how a part of my vision is not black, but it's just "missing"
Same, the fortification aura is really kind of amazing, putting aside the debilitating pain that's quickly approaching. It's really weird to have a part of your vision just "not there" as opposed to being black. It's even stranger when looking at a face or some recognizable object, and half of it disappears into nothingness while the other half still exists. Fun to play with.
the first time i had this, everyone's nose was missing. for ten seconds it was funny and then i hid in a bathroom stall at work, and texted my wife goodbye. i was positive i was about to die. its really stressful to have bodies.