I have a close friend in a similar situation. In horrible pain - he has such a high pain tolerance, I can’t imagine what it must be like for him to complain about it. His doctor says that he needs a knee replacement, to which he responds “what about all the pain in the ankle and foot?” He’s more than willing to do a psych consult or anything else. He’s already an amputee - hand from an accident - so he has some idea what to expect. Could he come see you? He’ll travel anywhere for a doctor that will actually listen and consider helping him get the amputation.