I get it i have it at the moment.. Usually comes up in certain social situations which sux
Ive found the only way out of this sensation is happiness.. be the person you want to be, do the things that make you happy. so sitting on here probably isnt doing me any justice

but helping other people makes me happy i spose
It comes and goes depending on my level of happiness. The more i go out (beating my fears) and socialising the less i get it
i used to get it worse, until one day when it came up i focused on slowing my breathing... breath so slow that if a feather was under your nose it wouldn't move (credit - the way of the peacefull warrior - great book), do this on the inhale and exhale for as long as you can.. i usually do 8 seconds in 8 out. building up to that.
ive also noticed that with certain symptoms of anxiety, if you find a way to control them your body becomes confident in itself and seems to not fear them anymore and you wont get them.. its weird
I guess we can look at it as a gift, a gift telling us that something is wrong in our lives and needs to be changed.
stay strong, push through your fears, try and forget you have an anxiety disorder (push it to the back of your mind) dont dwell in your negative thoughts (rise above them with positives) and start focusing on the living the life you want to be living.
that is all, hope this helps
mike