There are many causes for episodic Vertigo and imbalance such as Benign paroxysmal positional vertigo, vestibular migraine and chronic subjective dizziness. Detailed clinical examination is necessary to confirm the diagnosis. You need to undergo detailed vertigo evaluation and Neurological examination to identify cause for your problem
Next Steps
Consult nearby ENT specialist for confirmation of diagnosis and appropriate treatment if required. Meanwhile you should stop taking anti vertigo medications such as vertin for long term as it can reduce chances of recovery