question: Hi, I have had dizzy spells and an on and off kind of pressure headache that sometimes comes in around my eyes.  I was on serc for vertigo but the tablets don't seem to relieve it. I had blood tests done also and they came back fine.  I had a scan on my head about 5 or 6 years ago which was fine. It has been going on for about 3 weeks now. Do you think I need another scan