Pardon me, but let’s start this out with a personal question: Have you been tested for HIV? If you’re aged between 13 and 64 years old then it’s recommended by the Centers for Disease Control and Prevention (CDC) that you get tested for it at least once. Time’s a-tickin’. If you’re a little frightened about your physical health right now, that’s good—it means you want to look after yourself and those around you. Do yourself one better and check out I’m Positive—it should prove more persuasive than I, being a free interactive narrative about a guy called Tim as he…