Around May 13th of 2013 I noticed that the litter box was especially foul with huge amounts of urine. I thought at first that I had somehow forgotten to clean it but when the same thing happened 3 days later I knew that something was wrong. After observing my two boys for a few days I realised that Asterix was the one who was ill and made a vet appointment for him. Asterix was diagnosed with diabetes on the 29th of May. ~~~ Asterix passed away suddenly on 13 August 2015, but his glucose was fine till the end of his days. Our vet believes he had a heart attack.