is depression a faze

Depression is normal but it can be hard to tell the difference between causal depression and clinical depression. If you're going through some bad times and become depressed due to something that has happened then it's causal and a normal part of life. If things seem to be going well and depression comes out of nowhere, making slight negatives into larger worries, then it may be clinical depression which means that an imbalance of chemicals in your brain are telling you to be unhappy. After 7 years I might be leaning towards the 2nd explanation.

Depression can be a phase for some people. But if it comes back for you it may not be. For some people it gets better and doesn't come back, and some times it's the opposite. Tell your doctor about this. He/she may be able to help.

Reading your post, I identified with a lot of the things you've said. I'm the same way - especially when it comes to being in a sudden bout of depression when your mood was seemingly fine. For some people, depression can be a temporary thing caused by something that's off-balance in their lives (going through stressful times). For others, there are chemical imbalances that are not necessarily triggered by stressful events. You could be having the time of your life, but suddenly feel very down and unmotivated. If you have been dealing with this for many years, chances are your depression is something you may have to live with. Fortunately enough, there are hundreds of positive ways to cope with it. I agree with what Hannah said earlier - talk to your doctor and explain how you are feeling, and they will be able to help you.