Snake bites me in my dream?

me and my girlfriend were in a house, it wasnt my house, but we both lived together, i walked out side and saw a snake, i reached down and grabbed it behind the neck, when i brought it up, i saw that it had one head, but two bodies, i showed my girlfriend the snake and she was all like, ewww get that out of the house!!!, then i went outside and the snake bite me in the hand that i was holding it in. i was confuses how it did this, because i was holding it right behind its head, where it couldnt turn to bite, but it did. after it bit me, i saw that it had faint white strips going down its two tails, so i decided that it was a king snake, and didnt freak out that it bit me, so i slung it off and let go at the same time, and it ripped some skin off with it... then i woke up what does it mean?