I had one this past weekend actually. I ended up writing about 15-20,000 words, but most of it doesn’t make any sense. I mean the sentences and paragraphs do, but there’s no coherence to any of it. “Impulses on the mind”, like you said. They’re really affecting my day to day life. I’ll have a period where I feel content and motivated—about my job, for example—and then I’ll have a sharp drop off where, sometimes for days, I’ll find myself in one of these down cycles.
In fact I’m unsure if anything I’ve even said makes sense. How have you dealt with these mental impulse?