Eating Less

Hi everyone. My name is Dee and I'm new to this forum.

My cat, Tarzan, who's about 11 years old (I've had him for two years), has been eating a lot less since Friday. Normally, it's a struggle to keep him away from his food!! He seems very lethargic and is less active.

Thankfully, today, he's eaten a little bit, but he seems to only want to sleep more than usual. What could be wrong? I'm so frazzled.

Yep,agree with Candes,especially as he is 11 & it is such a drastic change in his demure....x