I feel stuck.

It's not unusual for me to feel "under the weather" or just be in a bad/sad mood in general, as they usually go away after a while. But lately (over the past months or so) I've found that the small bad moments last longer. I feel like I'm constantly living in a bad moment. Not even my friends or family cheer me up, and I feel really guilty, because I want to take break and just distance myself away from everything and everyone, and I don't feel like myself at all. I feel like I'm witnessing myself become just an empty person, and my appetite has grown less and less. I've never gone to the doctors to see if I might have depression or something, but my family doesn't believe in that kind of thing. Sorry this is long, but I really am desperate for help/advice.