eddie z. posted a pretty good synopsis of options. I would add a few things to it...
I suggest Progressive Muscle Relaxation as a pre-emptive exercise to help lessen/lower your attacks:
http://stress.about.com/cs/relaxation/a/aa110600a.htm http://www.lessons4living.com/how.htm
You have some cognitive hang ups that you need to address, and the therapy can help with that. You also need to develop coping mechanisms to deal with the attacks right before, during, and after.
Having mini-meditation sessions also can help. I use to do these at set times during the day (when I woke up, at 1:30pm, and then before bed) 5-10 minute sessions where I cleared my head, concentrated on getting myself mentally prepared for the day (or night).
-pedagogue