Welcome to H.C.M
With little information and as per the history you have given and the clinical findings you may be suffering with Benign paroxsmal positional vertigo
, which is episodic and associated with change in position of head. it persistis for few seconds to few minutes. I usually do a testing that is called Positional test and if found positive do epley's maneuvre. and with a good result. Infact antivertigo has no role to play in this disease.
But still I would suggest you to consult the Specialist if you don’t get relief as on examination the findings may be different and line of treatment may have to be changed. Please don’t hesitate to consult and ask for any more query. i will be pleased to answer.
With best wishes for a speedy cure
The Health Caremagic Medical Team