Vertigo while standing up from supine.

My mother , 54 years old, a known hypertensive and on regular medication, had an episode of giddiness followed by falling down while getting up from bed and walking towards kitchen. She did not loss consciousness, and no weakness of body. But the vertigo stayed the whole day and following days as well. Immediately after the fall, her BP was 180/90 even though she had taken her BP medicine that was Asomex 2.5 , 1 hour back from the incident.her BP has come down after 30 mins , to normal. She had been put on Neksium 40 and Bertin 16 mg BD for almost a weak, and now the vertigo is not there continuously. Even though last night she complained whenever she is looking down ,she is feeling giddiness , other than that she doesn't feel so. We have consulted a General physician (MD) ,and he asked to get her MRI brain and spine along with EEG to get done, but only after consulting a Neurophysician. We are taking appointment for a neurologist, meanwhile could anyone suggest me, a secondopinion