Dizzy

Having some kind of inner ear problem or something where moving my head from vertical to horizontal quickly or just quickly, I get waves of dizziness, spinning, and nausea. I got little sleep last night, and it continues today. I'm normally OK during the day, but I do have a persistent headache. Took two Tylenol, but no help. I've had this problem before, and it goes away quickly enough that I don't feel the need to go to the doctor. I thought it might be related to me drinking 6oz of a Spike energy drink yesterday morning, but I'm still feeling it today. I made myself burgers last night, and they weren't as well done as I like, but I doubt it was from that. Still, gonna lay off caffeine and sugar for today and tomorrow.