Could you clarify what you mean by "severe"? This is one case where it would completely change your diagnosis and treatment. As in "I pounded a six pack and could definitely walk, but I was swaying and stumbling", or "I couldn't stand up and felt like crawling to the toilet to projectile vomit"? If it's the former, see how you feel tomorrow. If it sticks around or gets worse, go to your primary care provider and describe your vertigo and how it's unpleasant but not some type of crippling "drop attack". If that's the case they'll likely chalk it up to a viral inner ear infection and prescribe some steroids and tell you to come back in a week to report how you're doing. If it's the latter (the buzzword for faceplant-puking is "drop attack"), go straight to an ENT to have them check for possible Menieres. My money is on a viral inner ear infection, since if you faceplant-puked I figure you or your spouse would have already gone to the doctor. :)