Can you hold sweet Mavis in your thoughts tomorrow. She has been drinking a lot of water lately and I noticed last night that she has water retention. We have seen the vet today and she also has swollen glands. The vet suspects kidney disease or lymphoma. Mavis will have blood tests and a needle biopsy of one of the glands tomorrow. She seems totally unaware that she is poorly and is eating as normal. We love her dearly and sometimes forget what an old lady she is.