Thank you! Now that I've written it down like this and thought about it, I agree that it does feel like more of a manic or mixed symptom than a purely depressive one, but it's so hard to tell these things for sure with everything else that's going on. What I will say is that in my mind, rumination has more of a staring-out-the-window-at-the-rain vibe to it, whereas the experience I was trying to describe feels more like a straightjacket-in-a-padded-room sensation, if that makes sense. Also the way my brain refuses to shut down and the thoughts just keep racing at night... The way it makes me want to scream and throw stuff at the walls... I don't know. I've kind of given up trying to make sense of it because I figure whether it's depression or a mixed/dysphoric state, ECT ought to help either way.