Personally i suffer from a rare mix of alzheimers and bolemia (spell check may be needed) it's liek nulemics, who will eat and eat and eat, but unlike them, i forget to puke afterwards.
Most people don't belive me and just says i eat (quantity-wise) liek a pig.
As for the insomnia thing, i think lots of people exaggerate, i wouldn't be supprised if every otehr perosn had some small sleeping trouble.
For insatnce i really prefer to go to sleep late and sleep late, but due to school it always result in me lying awake for some time, and then not getting up untill the last moment.
It's not imsomnia, it's not a medical disorder, i'm just too eager to keep doing whatever i'm doing (usually gameing) to go to sleep, and too much of a lazy fuck to get up in time to eat breakfest.
Add a slight bit if over-done exaggeration and you have insomnia.
Oh yeah, i make wales feel inferrior when we have dick-meassuring competitions, and i occationally swim across teh atlantic (i haev a dude sailing next to me to supply me with red bull to keep me awake but still)