I once asked my physical therapist if he graduated from the Auschwitz School of Physical Therapy! ;^)
He laughed and then manipulated your kneecap afterwards I imagine?
*shudder*
They have a tough job, they have to get you to move more than you are, but not so much that you destroy yourself.
In the meantime, you’re in agony and willing to sell out your family and your business to get it to stop.