I had to put down my cat i had him for 6 years from rspca he was 14last,night due to to Liver failure is liver was overside then normal. Plus is kindey where inlarge the he was in a lot of pain and there was nothing they could do. He had problems last year with is liver. but guess is liver over time could not take it. Few years back he had cancer but he got rid of it And recovered good. but I guess must of affect him.back then when he had is cancer is liver was not to good then I give did everything And did my best for him. I just miss him so mush he was a strong cat to get though is problems. I loss one cat but i have my 6 cats to takecare of.they are my life. I hope one day i will see him. and my dog of 19 who pass away 15 years ago.