Unless your stools are black, you do not have anything to worry about.Dark brown stools are completely normal. It is the black stools that I would be worried about. Back to top
In addition, Sjogren's syndrome may cause skin, nose, and vaginal dryness, and may affect other organs of the body including the kidneys, blood vessels, lungs, liver, pancreas, and brain. (Source: excerpt from NINDS Sjogren's Syndrome Information Page: NINDS).
It can cause small lesions to grow in your brain, and the symptoms can be confused with MS. I have peripheral neuropathy from it, but it sounds like you might have CNS issues. Overwhelming fatigue is also a symptom of Sjogren's. Mine gets worse the more my salivary glands swell.