Why are you suddenly so active at night?

Until 30 minutes ago I was gaming, listening to music and enjoying my life.

I was actually quite tired the whole time, but out of nowhere I got such strength,

First I did about 50-60 push-ups and then vibed to the music and shadow boxed for about 20 minutes.

And after 30 minutes of exercise I still have a huge amount of energy that I don't normally have.

Now I have enough energy for 30 minutes of exercise or something, and I don't know why, but it feels really good when I'm so excited and let my energy flow freely.

Does anyone know what this could be?

(I have this often)