Just an update:
I've been running in the mornings now, before the family is awake...only a 5k so far, but will work it up to 5 miles. I feel GREAT after the run for a few hours, but my runs are so early, that the "high" wears off by the time I have my stressful meeting.
That being said, I've noticed much less anxiety in the last few meetings...is it a result of the running? Is it a result of my breathing tricks and positive thoughts? Is it a placebo? Who knows, but it's working!
Just an FYI for any of you who might want to try running (or any aerobic exercise) as a way to combat anxiety!