Parkinson's poetry (really)

*Ahem*

He barged right in, he's here to stay,
A Mr. Parkinson, I'm afraid to say.
He was not invited and now won't leave.
I can't lose him, I perceive.

Look closely now, it isn't hard,
and you will see his calling card:
The telltale twitch of thumb and finger.
There it is! Watch it linger!

I take my meds and watch my gait,
try not to shuffle and stand up straight.
If I seem tipsy, I am not drunk,
just off-balance and that's no bunk,

A curious twist the Road (https://www.goodreads.com/quotes/228-the-road-goes-ever-on-and-on-down-from-the) has taken.
I may shake, but I am not shaken.
Thank G-d for my wife; we've naught to hide
on this, our journey, side-by-side.