Old and Tired But Not Burned Out

Lately, I've felt old and tired
The old fire is just a flicker
I've just recently retired
And I'm worried about my ticker
It used to be when I went to bed
I'd think about more things than sleep
But now when I lay down at night
It's all I can do to just count sheep
It used to be that I'd just think of sex
And imagine what we could do
But now I just fall right to sleep
Even when you are naked
And I'm right next to you
Yes,being old and tired is not the same
As being young and full of vigor
Like when a part of me used to grow
And go from small to way much bigger
But lately I've felt old and tired
Yet the old fire isn't totally all burned out
I can still feel just a flicker
So lets go jump into out bed
They say making love is good for the ticker