My cat is 9 months old and during the night he keeps been sick on the sofa. We've changed his food a while a go and that seemed to start it off but we've changed it back but he hasn't stopped, please could you advise me on what to do.

Hi, abiandrew14!

Cats can be pretty picky about the food that they eat. What exactly is he doing that's not good, please?

Thanks!