Hello, Sammy was only 5 years old and died yesterday. A few weeks ago we noticed he was trembling and so the vet suggested we could still rescue him from calcium bone disease. Poor guy was gasping his last gasps on my chest and I put him down, half an hour later my wife told me he died. He belonged to my 16 year old daughter and she was devastated. We all feel guilty as we wondered was there anything else we could do for it.