instinct

If instinct is enough to manage food intake in animals, is my (our) instincts damaged? Or is the brain overriding instinct?

So does this hunger come form the instinct or the mind? Id or ego? Natural or learned? Imprinted? Real sensation or a miss-interpretation of some physical generated feeling?

Is the physical being wrong or the brain wrong? Is it stress, anxiety, pressure, boredom, indecision, that I am considering to be hunger? Am I feeling a miss-interpretation of the foregoing list of situation induced feelings?

Is the hunger real or imaginary? It it adrenaline or cortisol out of line? If I have not eaten for 14 hours, it might be hunger; or ever 5 hours of awake activity.