I'm going to disagree with Jimbo (a rare thing indeed) that you need an attorney with RSD experience. You just need a really good SSD attorney. RSD in not a "listed impairment" so you need to really document your functional limitations. Being in denial can delay your approval. A few appointments with a pain psych doc is probably important right now. You didn't have a WC psych claim, when this started, but you very likely DO now.

I'm even more blunt now than normal due to pain... Sorry.