Clock - I was on Prednisone therapy after my allergic reaction to something I ate (squid or octapus or squid ink). I didn't notice any "extra energy" - what I noticed was I was figidty. Didn't help that part of the time I was at a conference, sitting in lectures most of the day. I walked down to the nearest pharmacy to ask the local pharmacist if I was going insane or was it a side effect to the Prednisone. She reassured me that my sanity was safe, it was the drugs, and that once I was off them, I'd quit being so twitchy. I suppose if I was home, and had access to my bike, it would have been better. It certainly didn't help that there were raging forest fires in the area, so I couldn't exercise outside (asthmatic lungs do not like smoke filled valleys). I was only on Prednisone for a two weeks, so maybe over time I would have gotten used to the side effect, but it drove me nuts sitting in the hotel conference facilities.

At home, where you could take breaks, or go for a walk or ride, you could probably cope better than I was able to - captive in the conference. I didn't notice the side effects nearly as much on field trip days - hiking to look at stream restoration sites.

Good luck.