Rockstar, a cat of 13 years, died in August. Since then his brother Bramble has shown some changes. He seems to have put on weight, and vomits far less often, making me suspect that Rocky used to nudge him away from the food dish and thus Bramble ate too quickly.
Bramble has also become much more needy of attention, frequently getting between me and food or work.
I wondered why my present keyboard is such a magnet for cat hair, contrasting with all its predecessors. Then I looked up when I got it: two days before Rocky died.