hi, you should really talk to a pyschiatrist. (spelling is off).... i have this same issue. they can prescribe you klonopin/xanax. helps me a lot. down to pm if you have any questions :)
i feel bad for you and hope you get better soon :(
i had a coworker with this same issue and i used to gather food for him at the restaurant and take it to the kitchen on the place we worked. perhaps you could ask for a friend to do the same for you?
Panic attacks are no fun and I get them from certain public situations as well (although not that kind of scenario of eating out in public), so I know how awful that must be. So sorry you're going through this.