you are quitting because it gives you too much energy??? that is one of the wierdest things i have ever heard but anyways what you can expect is less of an appetite, wont have effect on matabolism and probably wont effect your energy (but then again you might get lazier because you say weed makes you to energized) you may have trouble sleeping (or maybe better sleeping in your case?), diarea, but most importantly it might effect your attitude and you might act like a complete jerk and get mad more easily. These are the things that happen to me but remember these symptoms completely dissapear over time.

If your biggest problem is lack of burnout from mj, why can you not move on in life while continuing to smoke? IMO doesn't sound like much of a problem.