I would like to give you a solid, straightforward answer, but I can't. Honestly, I don't know what symptom belongs to which disease. I've been pondering your question since I saw it this morning, but I don't have any real answers. Pain is such a subjective thing. I hope you can find the answers you need. I can hear the desperation in your words. I want very much to help, but I don't know how to, I'm sorry. I get up most days wondering how much damage my body and mind has sustained since yesterday, and how many people have survived both Lupus and MS, and for how long. I have so many odd pain sensations, I don't know what causes which at this point. It's very confusing. I wish I could offer you more.
Please keep being proactive, and if there is some way that I can help, I will. There has to be an answer out there for you. Don't give up.