My cat is ten years old. He started with a cough(similar to that of a hairball). Brought him to the vet. Had an upper respiratory infection. Put on Penisilan. Didn't get better. Had blood work and x-rays and found a cloudy mass on his lung. Put him on orbax tablets 22.7mg(1/2 tablet per day) and still hasn't gotten better. He doesn't really eat. I have to feed him through an eye dropper with baby food mixed with water. When he does eat, he only eats a couple bites and turns his head to the left when he chews. Seems like he has a hard time eating or swallowing. He goes to the bathroom and sleeps all day and night. He is awake some, but only lies there. He still purrs and meows. I just don't know what to do. Please offer any advice that you can. Thank you. Bonny