My appetite has been gone for 2 weeks now. i eat 1 or 2 bites and leave it. i've tried drinking ensure to boost it but it hasn't worked. what should i?

Appetite loss: Loss of appetite may be due to psychological or pathophysiological factors. Is pregnancy a possibility? If not, are there any concerns psychologically or emotionally? If not, and appetite loss(anorexia), and especially if there is weight loss ,your physician should take a thorough history, perform a complete physical examination and order any appropriate tests in order to make a diagnosis.