Another one I found that I'd forgotten..

The Inherited

Generations have died before they've had a chance
to tell me how I'll go. One sudden death after another.
How do I prepare? Perhaps they are themselves
the indication and I'll just go like they did: in the morning
unable to sit up for fear of pooling blood; in hospital,
a pink swab mopping saliva from sunken parts of face;
eight weeks from diagnosis.

I could carry round whole heaps of hows to stop it, but slings
and plasters are no prevention. Every pain I have could be
where things will loosen first, every limp and yawn
a last hurrah, a sign of things to come.

I am not calm, but my oblivious heart is tapping out the truth
on my love-torn ribs: b-bum, b-bum, b-bum—
I think hear correctly: all is well yet, all is well.