My memory's definitely getting worse. Yesterday, I couldn't remember the name of the woman who played Victor Meldrew's wife; or the capital of Latvia. (Don't write in; they came back eventually.)
The funny thing is, it's not as if I had any need for those facts; I just suddenly became aware of their temporary absence from my mind. It's similar to that jolt of fear when you realise your keys or phone aren't in your pocket, because the weight that you're used to isn't there. A gap makes itself known, like a hole in the brain.
Maybe it's CJD.