Being bitten is read as a sharp hurt, often from someone or something you trusted or did not see coming. Tradition asks what creature bit you and what it stands for.
When this appeared in your dream, what were you feeling?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.