I recently started the dawnguard quests and after completing the first quest, we get to choose sides. Be or not to be a vampire, right? I gladly rejected the 'offer' and continued to ply quests for dawnguard. The second quest for them was to recruit 2 of their old pals. Before stating the mission I went to riften for selling stuffs and train but all of a sudden I m a vampire. Message popped up saying that my vampire blood boils in sun.
Here's what I did exactly. I went to riften and since I had fast travelled it was nighttime so I used the wait feature for 10 hrs. Then this all happened.
I even loaded the last save and did all over again but even then the message saying 'Your Vampire blood awakens'. Is this a bug or is it because I was harmed by vampires during battle??