Unraveling

[Mark Cecil]

Overall a great poem with good images that describes the messy state the mind can be in whether it is due to old age or illness.  I have a few suggestions below.

A simple word shatters at the thought
of a million of lost connections I'd suggest as others have of using thousand instead of million here and below
A million tightly twisted knots unravel
 
The unintelligible mice of the mind
Skitter scamper squeak
in overpowering commotion,
Drowning out your own name I love this stanza
 
Waiting for the day when numbers
order the way they're ordered to good rhyming of day and way really adds to the flow of the poem
Three six five, just letters, alternatively you could put "marks" instead of "letters" to really highlight the state the mind has decayed
The meaning as fragile Instead "The meaning fragile"
As the fallibility of the mind
That promised to hold on to it instead "once promised to hold on to it"