This query is about my mother. She is 57 years old. She has these dizzy episodes since last two to two and a half years. They are very short most of the time, lasting for a maximum of few seconds. It happens most of the time when she gets up from the bed or changes position on bed. She shows excellent response to both Vertin and Zevert. She took Vertin 24 mg BD for three months and then left it. She was alright for three months after leaving the medicine. But, last night she had symptoms again, same lasting for two to three seconds. She does not have any other symptoms. Her balance is perfect. She has a migraine for the last 10 years. My query is should we start her on Vertin or Zevert again? For how long? And should we go for any other investigation? Can it be something serious?