Vertigo Or Something

[badstar]

Seriously. I feel like I'm sitting sideways..and upside down. At the same time. My head feels a little bit out of it, and if I move from side to side, i feel a little unstable. I'm not dizzy or lightheaded. Looking in different directions besides straight ahead relives the feeling for a few seconds, and then it starts again. Standing up and walking around usually helps, but not this time apparently...I just took a stroll around my office and I felt the same standing up, though not quite as severe. I've been drinking water all day, so i'm not dehydrated. Does anyone have any clue what I mean?