I recently ran into a glitch with the DB that wouldn't allow you to go any further with the quest if you were a vampire. So what did I do? I put the quest on hold for like a month, maybe longer(game time) because I didn't want to cure myself. When I found I could cure myself and get "infected" again I dropped everything I was doing to get cured, finished that DB quest then immediately fast travelled to a vampire cave, got "infected(I can't see how it's an infection, but maybe it's because I'm such a huge vampire fan)...and waited 3 days....THEN proceeded with the DB
Vampires are just so awesome. I just wish we could feed like we could in LTD's Vampirism instead of sleeping victims only, but that's only a minor complaint. I'm also a big Anne Rice fan. I owe countless vampire books and novels. And stalking Skyrim as a vampire is fun..even if it can't live up to some of Oblivion's vampire mods.
I'm not saying the vampirism system is perfect, because it isn't. Bethesda should have consulted madmole or LTD. But I like it the way it is.
I'm currently at a 121 days a vampire. One of the first things I did when I first created this character was become a vampire. I was like level 4. I'm level 35 now