Why does a person begin to see everything as a obligation?

Eating, drinking water, going to the toilet, watching movies, going out and having fun, reading a book, making money, getting married, living, breathing, sitting idly and watching the wall, being silent and talking, sleeping and waking... It all seems obligation to me. Why could that be? Do you think my psyche is normal? (I will go to the psychologist in a week. I made an appointment.)
Why does a person begin to see everything as a obligation?
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