Thanks, all. Allan C., I didn't know anybody had noticed I was "emanating." Don...
There's a song in the Digital Tradition, "My Get Up And Go Has Got Up And Went," words trad, melody by Pete Seeger. I found a typed paper my mother had saved. It's a reprint from the Schenectady [NY] Union Star Action Line column. There's no date on it. There are a few verses that didn't make it into the song:

There's nothing the matter with me, I'm as healthy as I can be; I have arthritis in both my knees
And when I talk, I talk with a wheeze;
My pulse is weak and my blod is thin,
But I'm in danged good shape for the shape I'm in
Arch supports I have for my feet
(Or I wouldn't be able to be on the street).
Sleep is denied me night after night,
But every morning I feel I'm all right.
My memory is failing, my head's in a spin -
But I'm awfully well for the shape I'm in.
The Moral is this - as this tale I unfold -
That for me and for you who are growing old
It's better to say "I'm fine" with a grin
Than to let folks know the shape we are in.
How do I know my youth is all spent...

(But I still have all my teeth, except for the wisdom ones.)