she passed away yesterday.( she was a golden comet) We believe it was her age (4 years old), she lost all her weight and stop all activity, nothing i did seem to help her. Her poop was normal looking and she didnt ever throw up, just sit in her box and passed away. I feel so bad that I couldn't save her. My husband said its natural, that we will soon start losing more due to their age. is that true?