Question About A Hangover?

I got drunk off of vodka two days ago(saturday), and I didn't drink too much, just enough to get me drunk. Since then I have been disoriented and spacey, not really knowing what's going on. Is this part of a hangover? Am I still drunk? If so, for two days after? I had to leave school because I couldn't understand what anyone was saying to me. I can't remember anything from the past two days either.. What do I do?