I mostly agree with your observations, but in my experience, if you're spread very thin, you may be nearing the sudden burnout onset.

You feel motivated, full of energy, your juggle millions things at once, and then stumble once, then another time. Then your mistakes become more frequent. And you don't even realize you make them, others do... Until eventually you no longer operate efficiently.

Can take a few years to develop.

Take some rest. Especially if you feel productive like never before. It's gonna be hard to shut down for the first few days, so it should be at least a week of rest. Better two.

Chances are: after coming back you'll immediately notice a dozen of stupid decisions you've made.