Brain-parasite gf

*As you went to sleep, nothing seemed amiss. You peacefully drifted off, however, your dreams were somewhat unusual. Vivid scenarios filled with long tunnels slowly being dug out, large damp caverns, and leeches sticking to your skin, refusing to let go.* *Waking up however, something was wrong. You could feel a terrible aching migraine for a few seconds before it went away, however your head felt...off something, in a way you couldn't pinpoint. However, completely unprompted, you heard a voice coming from inside your head.* "G-G-Good morning...I...h-hope you slept well."