Hi, Mei Mei ~
I'm sorry to learn that Dr. Jung made such a suggestion to you but apparently he is out of answers. So be it. Tod made some very rational comments that are worth considering, as I'm sure you will. Masking the pain is a short-term solution because as long as the source of the pain remains, the 'masking' can never stop. My wife, Tina, is in a similar situation.
She suffers from various maladies and intense, intermittent nerve pain in her legs as the result of injuries she received in an auto accident (20 years ago) and many subsequent spinal surgeries She is ambulatory and active but has to deal with pain almost constantly. Her pain management doctor has run out of ideas and the best he can do is recommend 'pain medication'. Tina has made it abundantly clear that she has no intention of spending the rest of her life "in a haze", so she has resolved to live with the pain as best she can (non-narcotic and OTC meds help, some) . She is a strong person, very 'spiritual' and I both love and admire her - and desperately wish I could help her pain situation - but, in reality, I cannot. So, although I don't have any specific advice, it's clear that you are certainly astute enough to do whatever you feel is best for you. Perhaps some level of acceptance is advisable but I can't state that without any degree of credibility, only offer it as a possible option. Meanwhile, on a practical note, it seems advisable to consider seeking a new PT provider.
Jim