Hunger, but of what kind?

It has been a great cruise and you and your friend got so drunk last night you actually fell asleep in the same bed.(Mainly because you were too drunk to get in the top bunk) When you wake up (with a giant headache) you don't immediately open your eyes, because you like to listen to the sounds of the ocean. When you notice that the sounds are a lot louder than normal, but you just think it's your hangover.