I was under the impression that PU surgery was to help prevent blockages. Do they do this surgery for frequent UTI's?? The PU surgery shortens and widens the urethra, would that help in the case of infection? As a matter of fact, what I would love to know is if there is a way to protect a cat FROM getting UTI's so frequently?

If his bladder is infected it would most certainly affect his appetite. So just keep him comfy until tomorrow and give us a full report ASAP!