I know you can fix this by loading a seperate save file and then loading your current one, but lets face it-- that gets very annoying very fast.
So I downloaded the Unofficial Oblivion patch following the advice of UESP, that didn't work . Starting a new character is a pain and I've done it before with the patch enabled from the very beginning and the glitch still occured.
Then I tried to download the "Vampire Race Disabler" as was recommended by UESP also, but the file won't show up in my Data Files no matter where I seem to put it.
Today I realized that there is the OBSE program... I know that it is suppose to allow you to extend your Oblivion file (the one with the 0s and 1s, you know what I mean) and so that's in my Oblivion program file. One of the pieces of the OBSE file is called obse_loader which is a program. When I run it, my game automatically starts up without the normal pre-game box which allows you to do things like enable certain files, etc. When I load my game with this file, my character's face is not glitched-- it is female young (though still has the normal vampire aging), and vampiric. Regardless if I try to launch my game normally from my desktop the face glitch is still there.
It is possible that my unofficial patch isn't working because I'm missing a critical extra file or something, but I don't know what it would be.
If this obse_loader is a solid solution, that's fine, I mean it's a little awkward going through my files to get to it each time, but as far as I can tell it has no adverse side effects. But I don't understand how this download-based method works and no others do. So if someone could explain to me what is happening here I'd be very grateful-- or if they could tell me how to fix this thing once and for all I'd be EXTREMELY grateful.