I have had varying forms of panic for many years, although thankfully not so much of late. I really, really believe that panic attacks have a function in that your body/mind is trying to get your attention. Something is not right in your life. In my case, it was suppressed grief and as soon as I "got the telegram" they subsided. The worst thing is the fear of the next one -- it's like you are tied up on the train track and u can see the train coming. Breathing into a paper bag is just NOT going to cut it, LOL!