Somebody's duping zones!!!
In all seriousness though this happened to a ton of people a few days ago as well specifically in Oasis.
Some ended up finding their corpses along the zone walls while other corpse appeared after the last server restart.
Your situation sounds more like you were in a second instance of the zone... in which case only the GMs will be able to help.
See this thread:
http://www.project1999.org/forums/sh...light=instance
I could be wrong, but figured I should mention this before people simply tell you to keep looking.