It sounds like you do have a diagnosis- depression/anxiety. Being labelled though is never very helpful so really sometimes a diagnosis is not necessary (depending of course on the situation). You know you have depression and anxiety so what you need to do now is work on alleviating the symptoms through medication and therapy. I have suffered with depression and anxiety for many years now (although I have only had a few really bad episodes) and I was desperate for some sort of reason for it, like a diagnosis or bipolar or personality disorder or one of these conditions that you hear so much about. I just wanted to know what was wrong and why. But over the years I have come to accept that I have what I have, I am who I am and I need to work on the depression/anxiety and keeping it a bay rather than searching for another diagnosis.