You find yourself in Ponyville with no recent memories, a splitting headache, and an odd familiarity with everything around you. You realize that you're completely comfortable with ponies and situations that you have absolutely no experience with. You know for a fact you've never been here before, and yet it's like you've lived here your whole life. Nopony seems to recognize you, but you slip into playful banter with them like you were old friends without even thinking about it. What's going on?

Why does it feel like you've done this all before? And if you have, then why does nopony recognize you?

On a less personal note, what's the deal with your new accessories? You're pretty sure you didn't have them the last time you checked.