I am very worried about Monkey, my 4 year old tabby. Normally vocal and happy he has gone down hill fast. Yesterday I noticed how lethargic he was so took him to the vet. He had a temp of 104.5. The vet gave him a couple of jabs and said he should perk up in mo time. This morning he seems happier but doesn't seem to be able to jump, and when he walks and turns he seems to almost wobble. He normally rolls over and lets me rub his tummy but today seems like he might be in pain somewhere and is just sitting....what do people think???