don't know what to think!

Destiny

ive been extremely dizzy for 2 days now from the moment I wake up til falling asleep. when I get up the room spins and same with laying down. ive been so dizzy its making me nauseous. Wednesday I missed work because I sat in front of the toilet for an hour and couldn't see straight. today I went to the immediate care because my dr office had no room for me. the dr there couldnt find anything wrong with me no ear infection or high blood pressure. she assumed I was pregnant and I did a urine test there which was negative. I'm only 7 dpo so I figured it would be but I cant imagine I would be having symptoms this early? AF is due next Thursday so I'm gonna wait to test again until after if she doesnt show. has this ever happened to anyone else? ive never felt like this before and the dr told me wait a couple days and then go to ER if it doesnt stop. feeling helpless!!!