ibromyalgia
"I have  Complex Regional Pain Syndrome/Regional Sympathetic Distrophy .I started LDN (Low Dose Naltrexone, 4.5mg) during a Stanford double blind trial in January 2016 and received a months supply. During the first week I felt some of the muscle cramping associated with Naltrexone but that and my nerve pain subsided after about a week. The next three weeks sailed by and my activity level increased as I was essentially free of CRPS/RSD nerve pain. The chronic pain in my lower back was significantly decreasing too. When my supply ran out I experienced some of the CRPS/RSD pain but not at the level I'd had before. That wasn't the case with my chronic lower back pain and that came rearing back.

It was a month before my Dr could get me the compounded LDN. Again, my pain has dissipated. Weening off Gabapentin soon!"