After Working Out Yesterday, I Got Very Dizzy And My

After working out yesterday, I got very dizzy and my ears felt full - the same feeling when you are about to pass out. I still have a buzzing sound in my head, headache, slightly dizzy and a little nausea. I didn't have time to eat enough before the workout and thought my blood sugar had dropped but it has been over 24 hours. Is there something going around?