Guess the song using the lyrics I've been so good, I've been helpful and friendly
I've been so good, why am I feeling empty?
I've been so good, I've been so good this year
I've been so good, but it's still getting harder
I've been so good, where the hell is the karma?
I've been so good, I've been so good this year
Why, are you asking me why?
My days and nights are filled with disappointment
Fine, oh no, everything's fine
I'm not sure why I booked today's appointment

I know it’s a song that has been written by a human

The constant presence of diseases or infectious agents within a given geographic area or population group. it may also refer to the usual prevalence of a given disease with such area or group. it includes holoendemic and hyperendemic diseases. a holoendemic disease is one for which a high prevalent level of infection begins early in life and affects most of the child population, leading to a state of equilibrium such that the adult population shows evidence of the disease much less commonly than do children (malaria in many communities is a holoendemic disease). a hyperendemic disease is one that is constantly present at a high incidence and/or prevalence rate and affects all groups equally. so probably family history.