I just got back from a 37 mile ride because I forgot to bring a bar to eat in case I got hungry. I stopped because I got hungry and I didn't want to ride hungry. I parked my bike in the garage, went inside to pee, and got a glass of water. Somewhere along the way, I lost the hungry feeling. I realized I wasn't hungry at all. Thinking this was bad, I got an energy bar and ate it. I also ate half a sandwich. Five minutes later I was absolutely FAMISHED. I ate the rest of the sandwich, a bowl of cereal, and another energy bar.
This whole incident didn't strike me as odd until I felt the urge to have a bowl of cereal. I was curious if anyone else has had these strange hungry feelings and what causes it.
My piss was also a deep yellow, which I have been told is a sign of dehydration, so I am drinking lots of water now.