If anyone has any suggestions, I would be extremely grateful.
Let me explain what led up to this. My cat Tiana is nearly 18 now, but she's always been extremely healthy. No problems whatsoever, until now. One night a few weeks ago, she came inside after being gone longer than usual, and the next day, she began to limp. The vet couldn't find any apparent problems, so we brought her home to keep an eye on her. After about a week we discovered that a large abscess had formed, so we took her back to the vet. He opened and drained the abscess and put her on 10-day antibiotics and some painkillers.
She's done with the antibiotics now, and the abscess is gone, but she still has a severe limp. The vet couldn't find any sort of broken bone, though Tiana responds to touch as though there's something wrong with her tendons or ligaments, perhaps. She gave us a much milder painkiller to give her.
Unfortunately, toward the end of the antibiotics, she began to eat less and less, and she has become very lethargic. She is usually on one of our laps for at least a couple of hours every day and on my bed at night, but she hasn't done either for days. Now, we can hardly even get her to eat at all. She normally eats dried food, which she has ignored completely. She wasn't even tempted by smoked salmon, her favorite treat. We tried getting several different types of wet foods and microwaving them, and last night I was able to get her to eat a little bit this way, though she mostly just licked it. Today she has only given the food a sniff here and there.
Does anyone have any ideas? I'm getting really worried. She has always been on the thin side, only about 7-8 pounds, and she has already lost weight in the last week, almost a pound, which seems like a huge amount. What else can I do? The vet will be closed until Monday, and the car ride is extremely traumatic for her as it is.
Thanks in advance 
Emily
