I too want to welcome you here. I have not done the ketamine though it was suggested by my doctor, so I can't share any personal experience about that.
But, I do want to agree with Ali. My doctor gave me some valuable advise 20 years ago when I was dx'd with RSD that was, "Keep Moving". I know that can be more difficult than it sounds but, I believe great advise. It has served me well. As far as treatment, you will find lots of personal experience here and find the ways that works best for you, through trail and error. Blocks may be helpful as they were for me. Again, welcome to the forum and I look forward to getting to know you better. Hugs di