Hi vetttech,
I share this unhappy fate with you. For me, the culmination of the attacks is vomiting, and this can go on for a while, just retching, followed by a sort of shaking which goes on for a long time, then comparative peace. If I'm lucky I can get into a bed for the shaking part.
I understand that the Russian writer Nikolai Gogol had these symptoms and in those days it was sometimes called the 'ague' , (I 'm not sure of the spelling).
Of course we fear the circumstances of a panic attack. who wouldn't? I've often said that vomiting without a panic attack is a walk in the park, but vomiting in a panic attack is hell on earth. One wise doctor once wrote that a panic attack is the illest that a person can feel.
The only approach to this thing that has worked for me is to under-dramatise it, to treat it like a job of work, unpleasant but unavoidable. If we can reduce the fear, we can definitely dull the sensation, and all the worrying that hangs around this illness.
Good luck, Myzen,