Shrinking

I know I'm shrinking
I wake up every morning and can't get out of bed
You might be thinking this prognostication is all just in my head

I know that young at heart is of little comfort
when your arteries are blocked
Real exciting night on the town
Midnight for a quick
one as you pass out on the couch

I know I'm shrinking
I've done all the latest treatments yet my measurements are down
You ask what's stinking the demise and decay of our bodies underground
I'm not afraid of growing old
Just doing it alone