Dislocation? Restlessness? What is this?

Why do I feel like this? Tonight, it slowly started sinking in, maybe I'm just tired? I just want to drop everything and leave. Travel. Do something, be someone else instead of who I am. I don't know what lead to this and it's freaking me out a bit. I have so much going on, and most days I'm happy, really happy, content to be with myself, but there are moments, rare like this when I can't seem to get my focus on anything. >_> WTF? I don't like feeling restless, feeling like I'm not doing anything with my life, I know I am, then why do I feel like this? Maybe I just need a day to myself? I'm going to try to give homework another shot, if not I'm going to sleep.