YOu must get done a ENT consultation You need to get done few tests like the hearing test pure tone audiometry
and other balance tests . your ent specialist
can guide you for the tests after examining you.
You can take Betahistine
and then go for the hospital to get examined. The balance is controlled by the ears .
This could be because of cold
ie nasal infections,you can go steam inhalations at home , take a coffee. and you may require antibiotic , decongestants.
In doubt do reply.