I've realized just what's been going on with me: I don't handle transitions well, and my entire life for the last year or so and for at least the next full year has been (or will be) nothing but transitions. It's not to say I don't like change - I do - but I like the change to be over and done with.
I like the outcome, not the journey. Which is curious, because that's exactly the opposite of the way I treat vacations and traveling. But in life, too much hanging out waiting for the shit that's supposed to happen finally happen is just no fun.