Re: umm... mind set change?
No one here will be able to tell you what is going on inside you based on a few sentences. The first thing to do is to see a doctor that you trust and get yourself examined. Avoid looking up your symptoms over the internet. It does not help, but might give you fear over different illnesses, many of which have similar symptoms.
Than you can report back here what the doctor said and give us some more information. Maybe then we can give some advice. But you should really go and see the doctor first.
Method to face anxiety:
facing, accepting, floa-ting, letting time pass