Vertigo

You can fly, but that doesn't mean you like it up there. Truth be told, living makes you dizzy, nauseated and generally plain scared, so much so that you need to make a Willpower roll (difficulty 6) any time you try to fly to an altitude higher off the ground than your Homid-form eyebrows. Furthermore, any time you perch at a point more than 10 feet off the ground, you need to make that same Willpower roll, or things get ugly. You might panic, or perhaps you could slip and fall....