Yikes, sorry...I reread my post and realized that I actually wrote the word seizure instead of attack.
I don't kow what else to call it I guess, because when I fall or collapse during an attack, I tremble all over, and shake my head and arms from side to side, (I can hit my head on things if not stopped), gasp for breath and usually also experience panic hysteria at the same time which is a sort of screaming rhythmically for breath. The only other term I've heard used for it is a "complete or full panic attack" which doesn't describe it much, in my view.
But I should have written the word attack, not seizure. Sorry, it was late and I was not thinking clearly.
Brenda