Good morning. My Fiance has RSD/CRPS in her left leg, likely brought on by previous injuries/surgeries arising from her past in gymnastics. I do my best to support her and help her, but honestly its so frustrating that I can't do anything to ease her suffering. I'm trying to find some information on using supplements in combination with or as an alternative to her medications.
In my (brief) research, I have seen positive inclinations for B vitamins (especially B1), Fish oil/omega 3, Vitamin D, among many others.
I personally like to experiment a bit with supplements, and have found use for things like phenibut, yohimbine, B vitamins, mucuna pruriens, creatine,spirulina, cholorella, choline, noopept, etc etc. I was especially thinking about recommending phenibut and a sublingual b vitamin complex. I have not tried it, but I was also thinking perhaps Gamma-Aminobutyric Acid based on what I read about it. I'm hesitant to recommend any of these because of any possible interactions with her prescribed medication.
Also, she may look into medical cannabis in the future as its going into a trial program in our state. Do any other RSD/CRPS patients have experience and feedback on medical cannabis? I have also looked into CBD but have seen a wide range of feedback on its usefulness.

Sorry for the long post.
tl;dr-I want to help my fiance and supplements are the best idea I have but I would appreciate feedback from people who know more than me.