Thank you for posting your query.
I have read your medical reports above and my opinion is that you have BPPV-benign paroxysmal positional vertigo
. In this condition, the problem lies in the ear, and routine tests would not confirm the diagnosis.
The history is suggestive of the diagnosis, that is, the symptoms worsen with head or neck movements and they resolve on own in a few days, only to recur later.
A routine ENT or Neurology consultation may not help sometimes. You need to see a VERTIGO SPECIALIST.
Certain maneuvers such as Epley's maneuver done by the vertigo specialist can cure you of this problem.
Also, doing vestibular adaptation exercises under the guidance of a physiotherapist would help in preventing the recurrence.
I hope it helps.
Please get back if you require any additional information.
Dr Sudhir Kumar MD (Internal Medicine), DM (Neurology)
Senior Consultant Neurologist
Apollo Hospitals, Hyderabad,
My personal URL on this website: http://bit.ly/Dr-Sudhir-kumar
My blog: http://bestneurodoctor.blogspot.com/