My MC in my first attempt at writing has a fictional disease that is similar to vampirism. It is written in first person from his perspective. As it's a bit of a thorny issue he's not exactly forthcoming with details about his affliction- the idea being that he gradually lowers his barriers as he gets closer to a new person in his life. So his disease will make him need blood, be allergic to the sun, prevents him from dying unless he suffers damage to the brain and causes him to not age. That I know. Now I am quite shallow in that I like vampires to have the fangs, but as hes "not a vampire" it makes no sense that he could grow fangs. I'd thought that as the virus injects its own DNA into his cells it could change the coding so that his teeth could grow like a rodents and then he could file them down every few days so they don't draw too much attention. Basically this post is just me thinking out loud(and perhaps thinking a bit too much) and asking should I give him fangs or is that stepping into the traditional ' supernatural' territory?