Q. Milo has been feeling down for last month or so. However, he cannot quite trace back to what may have caused this feeling to begin with. Aside from feeling sad, he cannot seem to eat or sleep as he normally does. He has never felt this way before also it is beginning to scare him because he is starting to feel as if re is nothing he can do to stop feeling this way. Which diagnosis currently seems to best fit Milo's symptoms?