Energy disparity

Signs of a disparity in energy levels are starting to appear. While previously, I was easily tired out and wasted by a simple game of basketball, now it seems that my friends are the ones pleading with me to stop the game. Even though it is a refreshing change, this new found energy is becoming a nuisance...

Evidence 1:
Sitting through a 3 hour movie like "Troy" proved to be torturous to me. My butt was akin to being placed on a cushion of pins -- extremely restless. Even my friends got annoyed by my need to move around. Perhaps I should up my consumption of heavy food to dampen it?

Evidence 2:
Swimming 150 metres without stopping proved too easy for me while my friends are struggling to finish the first 100 metres. At first I couldn't understand their lack of energy, because being the soldier on course here, I am supposed to be the one with the lowest energy level, especially after a long day of training.

Could it be that I have accidentally consumed steroids? Or does chicken cutlet (which I had for lunch) boost one's energy levels?

I guess I would have to go and run down the energy for now...