Admittedly, Jigen didn't know shit about how migraines worked, or most any kind of medicine that didn't directly involve wound treatment (or wound creation). Maybe hallucinations were normal?

"I mean, that's not completely insane?" he offered, lighting up his own cigarette. "Brains can fuck with you. Sometimes I get weird dreams about a man who kinda looks like you're describing, so it can't be that uncommon, right? Never met the guy in my life, but I'll feel like I know him."

And sometimes wake up crying. Crying after a dream because of how beautiful it was and how deeply you've lost something you never actually had is normal, right?