I think I see the reasoning here. It may be hard for me to grasp, though, since I'm going through a slow brain phase. Which leads me right into:

When I have trouble with slow brain function, I think the biggest barrier to understanding what is happening inside me is to label it "depression." People hear "depression," and they think crying and moping, which isn't happening at all. In fact I am emotionally very dull, and I'm not sure I could cry right now no matter what happened. You have to have at least some mental energy going on, to feel emotion.

But right now, even being coherent enough to type this is exhausting for me. I normally type 60 words a minute. I can't do that right now. I'd be lucky to clock 25. My thoughts are coming too slowly and randomly to communicate them well. Then I have to go back and re-read my previous sentence, so I can connect it logically to my next one. I'm the same way verbally. I keep losing what I'm saying, in the middle of saying it.

Maybe instead of trying to explain this "depression" in light of other illnesses, the solution is to call it something else so people don't assume I'm simply in need of being cheered up? What should I call it, then?