I suggest taking him to the vet and having him checked. I don't want to scare anyone, but these types of things can be a indication of a brain tumor. You might be thinking that you wouldn't treat it, even if it is a tumor -- I know I would for an elderly pooch. But at least you'd have an explanation and perhaps they could suggest a way to make it easier for him/her to live with it for whatever time they have left.

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If this is going to be a Christian nation that doesn't help the poor, either we have to pretend that Jesus was just as selfish as we are, or we've got to acknowledge that He commanded us to love the poor and serve the needy without condition, and then admit that we just don't want to do it.

- Stephen Colbert.