CoCo- I've had this twice. Once really bad in 2004 with nausea, vomiting which lasted about 4 hours and I was dizzy for 10 days straight. Had to have my son do my jobs in my business for me during that period as I couldn't even drive. It finally subsided after 10 days. Then again another attack in 2012 and it put me on the ground hugging the cold toilet for a couple hours and my wife and niece dragged me on a quilt out to the living room couch - as I could not even walk. I recovered in about 4 days the second time.
In other words- I empathize. Been there, felt the pain. No fun whatsoever. My doctor told me I had bi-lateral vertigo and it was caused by calcium deposits crowding your nerve endings inside your ears blocking the signals to your brain that tell you when to move your eyes in harmony with the rest of your body. Thus the spinning motion which makes you feel like you're on the worst spinning carnival ride of your life - or a bad LSD trip gone awry. First time I experienced it - I thought I was having a freaking stroke at age 44 !
The exercises folks here mentioned helped me as well and I haven't had any reoccurrences. I wouldn't wish vertigo on my worst enemy . I hope you get to feeling better CoCo. Hang in there. Best wishes to you, Peace out, Mr. Flipper