I remember my first few days. It did seem more like "it was time" for one, than I was really having a "craving" for one. Seems like you're on the right road.
I also tried to quit a couple of times before this last time and it felt totally different. Going nuts wanting a cigarette. I think once you get to a different "mental state" it's all on how you looked at it. I remember just telling myself, 'I am NOT putting another one of those nasty things in my mouth again'. And that was it. And I haven't, and I won't.
Smoking IS the nastiest habit. It kills you . . . basically you are killing yourself!
Be proud of yourself. 3 days may not seem like a long time, but it is. You're on a great start. Keep it up and be proud of yourself. It takes a LOT to get where you are right now!
March 27th was 6 mos. and no smoking for me. You'll be there in no time . . .