He's undergone numerous tests and scans to see whether the casue can be identified. On Monday, the scans showed that it wasn't a tumour, and it wasn't scirrocis. He was on antibiotics to see if there was an infection causing the problem.
He was happy to see us on Sunday, but not at all happy to see us on Monday - maybe he was feeling better and was having a sulk. Yesterday he was very pleased to see us, very purry, rolling around for us to stroke him. He looked well - apart from having a drip attached to one paw, and having an enormous saggy other paw.
Over the last 2 days, he's responded well. Today the Vet said that they have pencilled in Friday as a date to operate on his poor foot.
We're so relieved.