I have a 20 year old cat who has recently been diagnosed with Hypothyroidism and a high enzyme count of the kidneys. He has lost a bit of weight, though he's always been a thin cat. But you can see and feel his bones when you pick him up. He is on medication for his thyroids, Methimazole, and we have to give him SQ fluids for his kidneys. The thing is, he eats but doesn't gain anything and rarely has bowel movements. I'm home all day so I'm feeding him a little bit throughout the day. He's unable to eat dry food which I put out but my other cat is the one that's eats it. I've bought cat treats but he won't go near them. He's favorite food is chicken, which I boil up for him since that's how I give him his meds, inside the chicken, but there's only so much he will eat of it. He cries all the time for food but eats a couple of bites and leaves. The vet tells me its because of the thyroids but I'd really like to get some ideas on what I can do from actual cat owners. They eat Fancy Feast, they are so picky about the cat food and this is the only kind they will consistenly eat. I'd rather not go the realm of kitten food because of the phosphorous count considering the issues with his kidneys. But I know he needs maybe higher protein/fat meals I just don't know if I'm doing enough. Would appreciate the feedback,thanks.