Is depression real?

A legitamite diagnosis for an individual experiencing emotional and mental trauma? I am on medication, although I do not know if I am depressed or just extremely lonely and have a low self esteem. I am twenty by the way. Yes, it has helped, but I am still upset. It really sucks. I always want to be alone and feel hopeless, feeling as if I should just give up and sleep my life away. So, is it real? Because I think it freaking is.
Yes
No, it is a pitiful label for someone that doesn't know how to deal with their problems
It is situational
Chemical imbalance/ bad genes
Select gender and age to cast your vote:
Is depression real?
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