Yesterday we noticed that his belly was distended and that he's been wobbly. Can't walk a straight line most of the time. These are not good signs. The balance issues could be an unrelated vestibular disorder, but - unlikely. It's more likely that his liver disease is Really Bad, or that he has liver cancer. He's still yellow, too, poor love.
So. Lethargic, eerily quiet, has not improved, has worsened.
They took blood today. Everything depends on the results of the bloodwork, which I ought to know tomorrow by noon.