I just started EMDR and a few people I know are going through this as well. It retrains the way you respond to a stressor.
http://www.emdr-therapy.com/emdr.html
There is also neurofeedback which is another method that remaps the way your brain responds to a stressor.
http://www.eeginfo.com/what-is-neurofeedback.htm
I hope these resources help. The EMDR and Neurofeedback have both helped the people that I know that have gone through the treatment.
I truly hope things get better for you and that you can get at the root of the anxiety.