well in this case my panic attacks arose simply due to extreme mental duress. It wasn't anything to do with alcohol not being in my system, it was to do with the fact that I was going to a BBQ on a beautiful summer's day, and I was terrified that I needed to drink beer out of habit. Basically thoughts of: can I drink, should I drink, can I not drink, can I handle it etc. etc. went around and around and around in my head until I flipped out, basically.
Well, I've been over a week now without a drink, and I've been in social situations where I would have normally been drinking, so I'm doing well I think. I'm going to a 21st birthday party tonight with a bar tab, this will be a real test. I CAN DO IT