A friend of mine told me to try these: Nitrox Infusion, Creatine Infusion and Androstendione. Do these actually help me while lifting? I took 1 serving each of the Nitrox and Creatine, before I lifted tonight and I felt worse, than when I lift without this stuff? I also have a new bottle of power Creatine, but have never used any before, is it good for lifting too or is the liquid stuff better?