Hi Chickadee and welcome!
You have done a great job on getting treatment going for these challenges that you are dealing with.
Keep going with your efforts...CBT and all!! It will work, as you are pursuing it thoroughly and with such perseverance.:)
Here is the progressive muscle page that you suggested...yes, it was somewhat hidden in with the group of coping skills (also posted below) so good on you for asking!
Keep posting with us anytime for anxiety support and encouagement! I am going to lock this thread down now...as it is getting long...but please feel free to start your own at any time (Post New Topic icon, upper toolbar)
S.C.
http://www.stress-relief-exercises.com/progressive_muscle_relaxation.html
Self Help sites with breathing/relaxation exercises instructions
Panic attack relief exercises:
http://www.healthcentral.com/anxiety/c/73076/34334/breathing-lessons/
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