Has anybody else used this pre? Seriously, my focus and drive is so extreme on it, like nothing I've ever felt before. It's literally a euphoric rage high. Plus, when I drink it, it tastes like I'm sucking on a can of spray paint. Anyone heard anything bad about it. It just feels like something that works so well and tastes so chemically, can't be good for you. Do they cut it with some breaking bad blue shyt?