Depression has a different quality than the normal range of sadness that a may feel throughout the day. When you are depressed you do not feel like being with anybody. Your either sleep way may more than usual or you can hardly sleep it all. Similarly, your appetite is either nonexistent or increases dramatically. Your energy level goes way down and you have a feeling of hopelessness about life. As difficult as it is it is important to get out of the house and get some help. You are not alone.