hi Nyctimus,

I agree with the above that you need some assistance.
I would suggest going to a good physiotherapist who knows a lot about the trunk and spine.
Will send you the name and phone number of a particularly good one working in Utrecht through your personal mail.
She is a experienced spine expert, physiotherapist and personal trainer.
dear Herc,
The Abbreviations NASM CES are not commonly used in the Netherlands.

kind regards

Esther