Hello, I was sent a link to this thread, in a reply to another thread on undiagnosed autoimmune disorders. Until today, I’ve never heard of SPS, but so many of my symptoms are stop on with what’s been mentioned above. When I Googled for SPS, the site I found said muscle spasms (some bad enough to break bones) are a primary symptom. I definitely don’t have that, other than some muscle twitching every few days. If any of the previous posters happen to read this, will yo please tell me if you or your loved one with SPS has this type of muscle spasms. Without that element, I have the chronic daily pain, balance and anzxiety issues, etc, that I’ve read above. Thank you. Bryan.