Yes, three years ago for several months accompanied by extreme dizziness and RLS (restless legs syndrome). I know that many people who suffer from anxiety attacks can't leave their home. In my case it was the other way round: I couldn't stand to be in a room (or a car) anymore, I always had all room doors and all windows wide open during that period. I'm still not sure if the dizziness caused the panic attacks or the other way round. I lost interest in everything and for the first time in my life I was not only melancholic as usual but very close to a major depression. I didn't want to take anti-depressants and all other treatments didn't help.
I even had some funny moments during this period: I told my GP that I'm running out of ideas and that a friend said I should start drinking lots of beer to get over it and to be able to sleep again (I normally don't drink alcohol and her advice wasn't really meant seriously), and the GP told me "Okay, alcohol addiction is one option to accompany your nicotine addiction, but I could as well prescribe a drug that shoots you on cloud nine. You will be smiling forever, do you want this?" I said "Yes, give it to me now!!" and he refused. 
Family and friends helped me a lot to overcome the situation. It may sound strange, but besides talking to other people - and ironically thanks to RLS - long walks (hours and hours, even in the night) were the only "treatment" that helped in my case - but I'm aware this isn't an option for people who can't leave their home due to their panic attacks.
I wish blazinhead and all others who suffer from panic attacks all the best.
