Hi Dubious,
Sorry I can't help. The only pain scale I've heard of is from the RSDSA organization. They talk about the McGill Pain Scale. I think they use it from 1-10. The RSDSA organization said this year there will be 50,000 more people diagnosed with RSD. 50K a year is a large amount. I pray and hope we get recognized as we should and people begin to at least recognize it to be a increasingly serious disorder
Please take care, loretta