Here are some good self-help coping exercises. They take some time to work, so try to be patient with yourself and the process. Keep them up, and you should feel some relief soon.
Self Help sites with breathing/relaxation exercises instructions
Panic attack relief exercises:
http://www.healthyplace.com/
http://www.stress-relief-exercises.com/
http://www.ehow.com/video_4405003_breathing-exercises-panic-attacks.html
http://www.psybersquare.com/anxiety/panic_relax_I
Good job on consulting with your doctor regarding your Rx concerns! I hope that you get the answers that you need!
S.C.