We've brought Oliver into the livingroom with us tonight as he just doesn't seem to have the energy to make it through from the kitchen tonight. He's not eating, barely moving, panting quite heavily despite not being hot (he's always panted a lot, probably because he's always been fat) and generally not himself. He even turned down leftover kebab. I will be surprised and delighted if he is still with us in the morning. He is a very very old dog.
Then again he has had days like this before when he must have had a cold or something yet the next day he had more energy and life than ever. I hope this is one of those, but I'm not holding out much hope.