Lately I have been spending a lot of time with my friends. Which isn't uncommon for me. But it seems that when I am not with my friends, specifically when I am at home alone I tend to get lonely and severely depressed. Now I can understand being depressed at home, but recently I have been getting severely depressed just walking out of my friends house to my car and driving home. It seems to be an almost instant mood swing as soon as I get in my car. Does anything similar to this happen to anyone else?