Hi WorriedC,
Welcome! Great support so far...
...so I will just say glad you joined us, post anytime for support...
...and here are some great self help coping skills for lowering anxeity and the possibility of having another panic episode.
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
Practicing these daily can really make a difference!
Scaredy Cat