Why Do These Fluctuations Occur?

I have particularly severe ups and downs.
The difference in productivity between different days is stark.

Days Like Lightning

Some days my mind is like lightning.
Not only do I breeze through the given tasks, but I even produce unexpected results.
Thoughts connect quickly, and everything seems clear.

Days Like a Fountain

Some days my mind is like a fountain.
Random thoughts spray out in all directions.
Nothing can focus until this fountain of thoughts stops.
Sometimes 30 minutes, sometimes over 2 hours, swept up in incomprehensible jumbled thoughts.

Days Like Constipation

Some days my mind gets constipated.
I strain and push hard, and a tiny thought plops out.
That's it for a moment, then back to a blank state.

Unable to Read the Signals

I'm a slow person.
Even when my mind sends me signals, I don't pick them up well.
I just try this and that.

Take a quick nap. Drink some water.
Stretch. Space out.

And wait.
For my mind to come back.