treelike makes a great point. And looking back at your post, you say that "low energy" means you can't decide what to do.
You shouldn't have to. One of the keys of processing is that you do all the decision-making then. Most of your actions - or at least getting started on them - should require little to no thinking anyway. Sometimes that means breaking them down into smaller-than-normal pieces.
I'm not a morning person by any means, but I had somehow trained myself to start getting up early (7am) last week, even though I had no pressing time to be anywhere. Friday, though, I slept poorly with a sore throat, shut off my alarm after two hours of counterproductive snoozing, and finally looked at the clock around 10:20, having missed my one appointment for the week. Oops.
Naturally, my groggy instinct was to just roll over, but since my throat was hurting, I decided to take some Advil first. While I was up taking Advil, I decided to take my morning vitamins. Once I did that, I had a little more water to help my throat, at which point I started feeling a little hungry, so I made some coffee and poured some cereal...
In 20 minutes I was no longer low-energy. I had "I'll just get the folder"ed my way out of bed and into the morning news.
So in addition to the task-building idea below, see if you can figure out what "low energy" really means. Is it "I don't want to make decisions?" You shouldn't have to. Is it "I don't want to think?" You could wipe down some counters, fold some laundry, do some stretches, slit open and unfold the mail without dealing with it yet. Or let yourself watch something funny (but short) on YouTube and then do something that takes just a little thinking with that laugh energy.
What sort of "no energy" tasks do you accumulate?