When OP originally posted, I was going to post but didn't want to be Debbie Downer, the previous Sunday, My son and I spent 5+ hours in the ER with my 20 year old cat. She had no energy, her pupils weren't focusing, she sat in her own waste, wasn't eating or drinking much. At the ER, the vet found a mass, but given her age and weak condition, did not suggest surgery. He prescribed pain med and anti nauseous med for palliative care at home. My daughter flew home the next day and the 3 of us took turn sitting with the cat at every awaken moment. She has chosen the bathroom to be her spot, so we took turn sitting on the floor next to the toilet to be with her...lol. Here is the happy news, somehow she got over whatever was making her ill, she is eating, drinking and voiding again, she got her voice back today and is yelling at us. I know given her age and the mass, it could be any time, but not today!!!