Am I depressed?

So lately I've been feeling.... Well, I don't know what exactly I've been feeling. But in the past couple of days I've just not been able to really do anything. Of course I had to but at times it was a real struggle to even move. Now I've had some other issues, mentally speaking, for the last year and I can explain further if you guys want. But I've just been feeling like everything is just a gray blob and I'm kind of scared.... I may be way off with all of this though... But thanks for your help in advance.

-B