Have you started to halucinate yet, I start to after 36 to 38 hours of no sleep, thats straight, not having a nap nothing, things begin to get really strange after that long without sleep. I highly recommened you all try it at least once in your lifetime haha.
You'll eventually just pass out somewhere, just try not to drive a car or something until that happens, if your walking down the road aim for the ditch when you start falling over so you don't get ran over. Just some words of suggestion and experince.
Thats great!!! You didnt sleep for 3 days, it doesnt mean that you are gonna die or you are suffering from insomnia. I remained awake for 5 days continuous during my exams. But see I am posting here today. Means I am alive. So dont worry.. you will be fine!!