You have had your doctor check you out to be sure there is nothing physically wrong and he found nothing...that is a good thing. It may not seem like a good thing right now, but it is.
Now you need to do some work on yourself. Do the Panic Program here (link in the navigation bar to the left of the screen) and read some material on what you have. Knowledge helps quite a bit. I recommend "A guide to Rational Living"...not lite reading, but very helpful.
I've never used Paxil but if it is working for you then stick with it. You may want to see a shrink in addition to your GP.
I had my first panic attack in a car as well, that was many moons ago and I still am battling anxiety. I havent had any more severe panic attacks but I must work each day to maintain a low anxiety level. It isnt easy, but it can be done. Besides, nothing worthwhile is ever easy.
Good luck!
Mike
