Let me start by saying I am taking my Cat to the Vet in the morning. My boy Jasper has stopped eating and is lethargic, and I am seeing his third eyelid in both eyes. Let me explain he is usually the first to beg for food at feeding time ( I have 5 cats) he loves to eat! By saying that I noticed yesterday he wasn't hungry and didn't want to eat. I gave him some wet and he seemed interested so I thought he might just want some wet food he ate a small amount then nothing so I left some kibble out for him thinking he might eat it when I leave. I usually never leave food out. I don't like free feeding. This morning's food was gone but the chance is the others ate it in the night. I fed him in the morning he didn't eat much but I had to leave for work so I couldn't tell if he ate or not. Tonight he hasn't eaten at all and I have noticed he seems lethargic and I can see his third eyelid in his eyes. He is also hiding under my bed which is very rare. He's usually on the window bench or at the foot of the bed. I haven't seen him use the litter box. And when cleaning all looked normal but not sure if he has used it. No accidents out of the litter box. All my other cats are just fine all acting normal. If anyone has any ideas just to give me some peace of mind until tomorrow that would be lovely.