Madness string 935

Random mermaid
Sun came out, and I walked on my feet and heard with my ears. I ate the bits, the bits stayed down, and I work. I function like I'm a girl. I hate it because I know it'll go away. The sun goes dark and chaos has come again. Bits. Fluids. What am I?!

There was so much work to choose from, boss, so I did none.