Do you take anything for your anxiety? I take Klonopin and it really helps. But there are other meds (Lexapro comes to mind) that I've heard can help with this. But for immediate, quick relief from anxiety like this, a benzo like Klonopin or Xanax would help.
Just a thought.
Greg
"Beauty is truth, truth is beauty - that is all you know on earth, and all you need to know"