Low GI Foods have a longer release of energy, is that right? That is, they make you feel satisfied/full for longer?!

Well if that's the case, then I need some low GI foods!!! The past 24 hours have been horrendous.......I've had to eat every 2 hours around the clock and it's killing me from a sleep POV!! Perhaps I need to pay a bit more attention and focus on low GI foods? WDYT?

Can anyone give me some suggestions?!