I get occasional dizzy spells esp. with movement and i'm always in fear of the next spell, or worried it will get worse. how can i overcome this fear?

Have you had a: general physical? You'll want to check the basics, blood panel, nutrition, ht/wt ratio, EENT, etc. If all is OK, you probably have anxiety, possibly GAD or hypochondriasis. These should be treated by a psychologist or psychiatrist. Here's a starting point to learn all about anxiety: http://www.psychologyproductsandservices.com/page2.html