Hi My cat of 12 years has been off her food and there has been a dramatic weightloss very quickly. She is weak. She didn't come downstairs all of Tuesday and so that evening, I weighed her and she only weighs 2.5kg's. I took her to the Vet on Wednesday. The Vet says she has Lymphoma (Mesenteric/alimentary). The vet let me feel a large plumb sized lump she has in apparently in her intestine. She said there is no cure, it is in-operable. She has a few months possibly. The vet gave her a steroid injection she said will help, with a follow up consultation in 3 weeks. After about 3 hours the cat came downstairs and started eating a little. I cooked fish pie deliberately to entice her and it actually did She now eats little bits often. The vet says she may now gain a little muscle back. This is an awful experience. Also, my other cat, the ill ones daughter can sense something as she is looking a little depressed and not eating as much as normal. She loves her food normally and is actually overweight atm which I am trying to address. Has anyone else experienced this?