Bad mental habits are causing PD.
Anyone who has PD has already noticed how his symptoms vary according to his mood or, more precisely, how safe he feels.
To recover from PD one must work on his bad mental habits that are causing him to feel unsafe.
One must be aware that his mindset is causing all the mess. Our problem is not the situation but our thoughts about the situation. Our greatest enemy is between our own ears.
We are safe.