When you’ve been excited for your planned Vacation for months, but as your vacation nears you already are sad about how it’s almost over. (Also referred to as Pre-trip Depression)
Daniel: Dude why are you looking down in the dumps?
Henry: Well, it's just that I'm going to Disney World in a week.
Daniel: Well, isn’t that something you should be happy about?
Henry: No! Can’t you see that if I go to Disney World in a week I have nothing to be looking forward for? I won’t have a vacation in years. I have Pre-vacation Depression