Listen, twig man, it IS the dextrose that is giving you the "feeling" of energy.
Sure, the mix you are taking will provide more energy for workout, but not an energy which you will feel, like say if you where using ECA.
Creatine will allow your muscle cells to volumise to a greater extent, but it will NOT give you an energy boost during work outs. You just can't feel it that way.
If you are feeling anything, it is most likely a placebo effect, or the sugars in the mix you have bought.