Karen, This happens to me too, probably alot of people on the panic site have felt this way. What I normally to is try to sit down and if possible put some cold water on my face and wrists and try to breath, till you get use to going out taking a low-dose Xanax should be alright, take it before you leave the house, you will not be on it forever and just use it till you feel better, I use to be so anti-medication, but I keep my doses low and use them as an aid till I can do without. You had said you had stopped for some pizza {that sounds so good} you could of been hungry and your blood sugar was a bit low and you needed something to eat, that happens to me when I need to eat, a piece of candy, glass of orange juice or a little coke or ginger ale usually helps me, did you feel better once you ate? That sounds like you got light-headed from being a bit hungry, I hope you are feeling better. It will get easier. God bless, Debbie.