You could be diagnosed with depression or not, but the feeling itself could be generalised. Depression is a wall between you and you, that makes you feel down and confused about life and yourself.
You might try to sleep too much to escape the world, or your feelings are all over the place, but it is all part of what you are going through. You see the world in a different way, you see people’s actions in a different manner and often offended by them, you need love but you can’t find it, and the list goes on.
It is an experience we go through and I believe there is no ultimate solution. It is you who can see the truth inside you, and decide what could suit your case the best. Just don’t give up.