DR RV ANAND SENIOR NEUROLOGIST SAI NEURO CLINIC MANDAVELI MYLAPORE DIZZIINESS could be of sudden onset associated with ringing sound in the ears with gait imbalance.its mostly due to vestibular neuronitis.If identified treated appropriately it resolves with in weeks time. this condition is also called labyrinthitis, probablyt caused by a virus that causes swelling around the balance nerve