I have a friend with anti-phospholipid syndrome. Unfortunately, she had a stroke before she was diagnosed with it. She now takes blood thinners to avoid another occurrence of stroke.
This syndrome occurs frequently in connection with Sjogren's syndrome, lupus and RA. One of my old rheumatologists tested for it with all his new patients that had an autoimmune disease, just to be thorough.
I do not know if there is a direct connection between anti-phospholipid syndrome and peripheral neuropathy.
I hope you can get some answers. While people with autoimmune diseases often have more than one at the same time, it is also entirely possible to have one exist in isolation. It is also possible that you didn't have this before and now you do.
fanfaire