What will you do, if you find yourslef, tired, but you can't rest.
Hungry, but you can't eat.
Sad but you couldn't cry.

Nothing too hard and philosophy. It simply means that you are having anxiety.

Lively a bit, I used to tell myslef. play a game, read a book. Go for a little walk, out of these hustle bustle schedule and city.

You will realised, you are still alive! :)
Amazing!