It likes to play dead

Everytime I change the water in my fish's bowl, it goes through some strange phase where it plays dead for a day. Upon closer observation, I am guessing that the change of the water makes its swim bladder react strangely. It almost acts like it can't emerge itself below the surface - like there's air inside of it making it rise to the surface against its will. It usually gives up and just floats at the top, like this picture depicts. It's kind of creepy, but lately I've gotten used to it.