Hang on Lee!
Recently I've fund some good article about fear and anxiety.
Here is fascinating quote from it:
"The problem with chronic fear and anxiety that are triggered by stimuli that do not present acute danger to your life is that these emotions sap your resources, causing your self healing and preserving mechanisms to dwindle in efficiency. So the longer you experience chronic fear and anxiety, the worse your overall health becomes.
My personal belief, established over the years through personal and professional experiences, is that overcoming chronic fear and anxiety requires that you create memories that can modify or simply overpower the memories in your head that are currently responsible for your chronic fear and anxiety. But this is no easy task, as your current memories are deeply established patterns of connections that exist between the trillions of interactive surfaces that exist between the billions of nerve cells that make up your brain."
Here is link to article, could be interesting for reading:http://drbenkim.com/overcome-chronic-fear-anxiety.html