First, you choke on an easy mouthful of air, gasping in over and over but feeling more light-headed all the while
Second, you close your eyes, taste the terror rising up the back of your throat and blocking the air from going down
Third, you shatter, feel your body falling apart and realize with a vengeance how delicate your life is
Fourth, the panic starts. you shake, scream, sob, curl up or lash out while it grabs hold of your nerves and bends your body to it's will
Fifth, you find some breath. maybe someone is helping you. maybe you're helping yourself. a wave of calm displaces every other feeling.
Sixth, you lose your body. your mind floats in a pool of nothingness while your body runs out of primitive instinct. your calm turns to numb.
Seventh, you blink. you breathe. you remember what it feels like to be in control of your body again. you drink some water, or sleep, or both. your head hurts. your mind drifts between your body and the ether. you wipe your face and try to remember what it's like to not be having an attack.
Eighth, you can't remember, because it never seems to end. you accept it. you refuse it. you hate it. you cry. your chest gets tight.