Hi I am sorry about your pain. The block I had increased my pain but it did settle back to where it was which was hell but not as horrid as the flare as the block gave. My pain doctor said that the pain probably is not stemming from the spine then. I have had very little success with meds and I take no narcotics now but even ones like neurontin. I have gotten a few opinions from pain docs. I always encourage others to as well.
As for ketamine I think if one does it and I have not but have read a lot and same with my mom that it is important to see someone who deals a lot with rsd. I feel that way about pain docs in general and treatment providers be knowledgable about rsd.
When I went to a day program for pain at Cleveland Clinic some had issues with med addiction. I really feel for people who do. I think regardless if this is or not an issue therapy can help in general to cope.
As for the doctor I am sorry that you were treated that way. I agree that one no matter how upset they are must remain calm in front of them. It is ok to say how you feel but must be done in a proper way. Most of us have heard things from docs that make us want to scream but taking a deep breath and having a plan either to see someone else or explain to the doc in a calm way how you feel is important.
Hang in there and I hope you can find a doc to help you