I just had an unexplainable wave of sadness hit me a little under half an hour ago...don't know where it came from. I was feeling fine one moment, and then suddenly, boom...sadness. I don't know what to make of it. Also, it's not going away, so looks like I'm gonna be stuck with it for a while. Now I don't know what to do about it. Not sure if it's depression coming back to swallow me or what...Should I be worried? I'm familiar with depressed moods like this, but what I'm not used to is having one take over me so...suddenly. I also currently don't have anyone IRL to talk about it with, so I'm relying on you guys...

What should I do? I suddenly feel like crying and everything seems bleak and hopeless...