I am dizzy i cant walk straight and nothing seems to help and i have a throw up like feeling?

Postural dizziness : Dizziness that worsens with sitting up or standing and improves with fluids can be called Orthostatic or postural dizziness. Commonly it's due to dehydration, however certain other conditions can also be considered: Infections, POTS, medication side effects, or benign positional vertigo). There is also a form of migraine called migraine variant vertigo which can also cause dizziness with nausea.