A person who is experiencing sadness or low energy is in the stage of the mental health continuum.

The answer would be depression.

Some common symptoms of depression are
•lack of motivation
• excessive sadness
•low energy
•short temper
•hopelessness
•sleeping disorders
And so on
Hope this answer helps! have a good day :)

You did not show us the image of the burger, but i shall try to answer as best i can.  when purchasing food, always consider the ingredients as well as the person who prepared it. consider if they were hygienic people or not, in case the burger was infected with bacteria. no mortal should place an infected burger into their mouth.