LOL. No, the Tren. isn't going to make you horny, the Test. is, & its not gonna happen within a few hours, lol, its gonna take some time, I've never run a short ester Test. but I know Test. E. takes about 4 - 6 weeks to notice "the change". I think you should stop what you're doing & dig into some learning materials before you make an assumption / mistake that can hurt you. As far as the sides you're experiencing, I would check my BP if I were you. Are you overweight?