Matt- Thanks for the info.! I will see if the library has the book you've suggested by Claire Weekes. I've checked out the website you've mentioned, which I'm sure will be helpful, as I'm not currently in therapy (still looking).
What's really strange about my experience is that I already AM agoraphobic & socially phobic, & have been for most of my life. (That's why I rarely leave my apt.) I have had a full-blown panic attack many years ago, where I was convinced that I was having a heart attack, so I thought I'd recognize one if it happened again. (And the panic attack occurred at home, so that isn't the reason why I became agoraphobic, as is the case w/ lots of people who suffer from them.) This is different; not something that goes away after five minutes, but is always there, at least until I arrive home again. I think it still may be happening while I'm at home but I'm not as aware of it, since I can sit or lay down, & can distract myself by watching TV. You mentioned "dissociation" as a tool to deal w/ my panic, but that's what it feels like I'm doing w/out intending to do so. I feel like everything is surreal, & I'm invisible & not present. Sort of like I'm a ghost. At any rate, I'm releived that it is anxiety, & that there are things I can do to help myself.

Btw, I take 1mg of Klonopin 3x day- that's a lot!

Does anyone else experience this? If so, what do you do to cope w/ it?