Yes, many of us suffer from Sjgoren's as it is also an auto-immune condition. Unfortunately, once we develop one auto-immune condition (such as Lupus), all of it's auto-immune relatives want to try to jump aboard the train (lol). So, there are many of us who have multiple, co-existing auto-immune diseases and Sjgoren's is one of the most common ones that we develop.
I am glad that the drops are helping you with the dryness. I wish you the best.
Peace and Blessings
Look For The Good and Praise It!