I wouldnt advise you to go and pump yourself full of chemicals.. Thats everyones answer to everythign these days - stress, depression, hyperactivity, headaches, pain, sleeplessness, etc etc - when the problem can usually be cured more naturally.. my advice is this - take a look back at the last few weeks, and try and see what changes my have occured in your life that may coincide with your loss of appetite. It may be anything - changing your daily routine, changing your excercise routine, somethigns upsetting you, etc.. then when/if you figure out what it is, do somethiong about it.. if not, then go to your doctor, but he'll probably ask you the same thing I just asked you.. THEN, if all else fails, pump yourself full of prescription pills lol