A nurse at work explained to me that the Epley maneuver works pretty well to self-treat vertigo (since vertigo is because of floaty crap in your inner ear causing havoc). I know this post is two days old, but next time you have an issue, give it a try! I've seen it work effectively. https://www.youtube.com/watch?v=llvUbxEoadQ

(They have another video for the other side but it's just reversed movements. There's also one where you kneel on the floor.)