What's Wrong?

I've been feeling a bit down the past few days; I don't know what's wrong. I hate when I'm in one of these moods where I don't know how I'm supposed to feel. I'm sad but I'm not sure where this sadness is coming from; I can't directly pinpoint an event that happened to make me feel like this. Maybe I just need to have a good cry but I don't feel like crying. I think I just need a nice hug or something. Even shopping online is proving to be useless. Maybe I need to find a new hobby or something; something that will consume me in it. I feel like all my friends are off doing their own things and there's no time for me. I think I've been growing distant to a lot of people. I feel like I don't see my family as often as I'd like because we're all just on different schedules. I feel defeated by life I guess. I hate that others know what they want to do in life and are working towards it. I hate that I'm being left behind. Maybe I should volunteer somewhere or something.