Honestly, you don't sound depressed to me. You're an academic, yes? We tend to ruminate and perhaps over analyze everything, I think. If you were clearly depressed, you wouldn't find enjoyment in the things that you do enjoy. There's a hopelessness and a helplessness that is profound and ever-present in depression, even in someone who is managing to function. At least that was how I felt.

That said, there may be something going on at the initiation of action stage, that prevents you from taking the actions more pro-actively that you know will result in your finding enjoyment. Whether that's something to treat with meds, I don't know. There are ADs though that have been used primarily to treat chronic pain, so that's also something to think about.

We do tend to live in an age and culture that I believe artificially boosts our expectations of what happiness looks like. We seem to have pathologized the normal ebb and flow of emotions into disorders that must be treated. I live overseas, and I don't find this attitude to be so prevalent.