Randomly, usually every few months, I won't be able to enjoy any food. It lasts about a week or so, then I can enjoy food again. But during these periods of time, no food satisfies me. I can still taste, but I feel unfulfilled by eating. And the strange thing is, whenever this starts to happen, I happen to be eating fried chicken. Strange coincidence. Why is this? How do I prevent this nightmare? I love food, so I'd appreciate any help.