I dreamed of being haunted by snakes, and recently watched movies or pictures about snakes. Memory caching affected the brain's representation of dreams.
Dreaming that you were bitten by a snake in the water indicates that the part where the dreamer was bitten may be the potential area of the disease.
Duke Zhou, my aunt dreamed that the snake bit her foot and didn't bleed. Snakes are a symbol of good luck in her dreams. She dreamed that snakes might make a fortune recently.