Snakes in dream? What it mean?

I usually dream about snake a lot but I never scare of them. This time I dream about them 3 days in a row and it keep getting worst. At first just normal then there tons of snake just keep come out everywhere it just come out and try to eat my guinea pig. Then one my third i dream about tons of snake but this time with one giant snake and we fought with it (i think i not remember it clearly) then cut it head off or something. In dream i not scare but don't know what to do and just stand there. I hope i wont dream about it again tonight