Not sure if this makes you feel any better -- but I feel dizzy right now. I've also been feeling like this lately, one time I got really dizzy that I was sure I was going to pass out. But I didn't.
Sometimes it feels like my head is spinning, or the floor is moving underneath me. I use to get really panicky about it, too. I thought it meant something is wrong with me. I use to (and sometimes still do) analyze it - thinking to myself, "maybe I am not eating enough", or "maybe I am not breathing right", or "maybe I am sick". However, I've felt like this many times before and nothing bad has ever happened. So I've come to realize that it is just a symptomn of anxiety and it can't hurt me.