my advice is just to give it time

I don't think your at your awakening point yet. Vamprism isn't like menopause where you have certain symptoms for a year and because it's been going on for a while that it has to be that your turning into a vampire (Oh yes I made menopause as a reference deal with it. ;p) I don't really want to get into it because I agree with the others, where you think your awakening or turning because you have "xxx" symptoms.

You just know, you can feel your body going through the changes, you can feel yourself become disconnected with everyone around you to the point where metaphoric pain in your heart becomes real because you crave something that everyone around you considers a "Sin", "Freak", or even worse, they might even say that you are just going through a "Phase" (Thats the one that they told me ;p)

Don't be scared, after you see the doctor I would recommend you finding a mentor so that way you don't have to be alone. I don't just mean a mentor here in cyberspace but a true one who can be there for you and hold your hand in the process if indeed you are just awakening.