My Bengal is called Duke and he is 18 this year. He has had a few health concerns over the years the most serious being Hyperthyroidism and he had radiotherapy treatment. He started to look a bit thin even though we couldn't keep pace with his eating. His fur was looking a bit mangy and greasy and he was a bit unsteady on his feet. We thought bless him he is looking his age but the vet did the test and confirmed it. He had the treatement and it was successful.
Even though he is getting old his bad behaviour hasn't got any better. Bengal's never grow up.