Pay attention to your body. The energy drain is likely coming from your brain. It is possible to ignore it.

Your legs likely want to walk, you arms likely want to move. Your face likely wants to see the sun.

There is a very strong mind/body connection no doubt. Most give all the power to the brain, but that doesn't have to be the case. The connection works both ways.

Give your body what it wants and the brain will learn its place in the scheme of things.

Stupid brain.