Over the last couple of years I have been getting dizzy spells or a felling of light headedness. Last July I had my gallbladder removed and they did do a brain scan as a precaution and found nothing unusual. I previously had a Subarachnoid haemhorrage in 1996. I am not on any medication . I had one of these dizzy spells just yesterday (a feeling of side to side lightheadedness yesterday when I was driving). My Gp suggested I go on Vertigo tablets a year ago without a real diagnosis so I didn t. Any thoughts?