[Allen also frowns, a bit puzzled. Man Aang, why must you always be a special snowflake. He's known lots of people on weird world changes that have returned, but never quite like that]

...Sorry, if you're certain it wasn't a world change, then I don't know what happened to you. I just know you weren't here.

[he isn't touching the forgotten to be human part because ha...ha...ha that brings up a possibly even worse problem about this land]

Regardless, once we get back to where I've been staying I'd like to give you a medical exam. Just to make sure you're entirely okay after being apart from your body for so long.