- HR requested a new note to maintain my accommodation concerning my loss of mobility... they informed that I will need to provide such a note every 6 months... 

Hello HR,

Ok, but I hope you will be able to understand 

How humiliating an experience this is for me

To have to prove my loss of mobility every

Six months for a degenerative condition with

No prospect of improvements.  I understand

Procedures, but in the context, I hope you

Will be able to see from where I'm coming from.