I have this too. Caffeine makes it worse. Make sure your blood pressure is okay first....
Doc had me try low dose Ativan for the dizziness and it helped a lot. (.05) I only take it when I go out or drive to the grocery store. Its worked well for me. He had me try it because it doesn't work for everyone. Its a preemptive strike, because it takes awhile for Ativan to kick in. My dizzy level was at very low level and more like a constant off balance but would get a tad worse with excitement......and yes going to the grocery store is excitement. Also for a time, the bright fluorescent lighting in those places bothered me. I would experience the same thing you did, felt as though I was going to pass out with it.

I get it a lot around the house. It acts like low blood pressure so you need to make sure that is not what you are experiencing. I got myself a cheap blood pressure cuff and kept a log for awhile.

Also; are you prone to anxiety or panic attacks?

Hang in there skywalker!!