I have had similar symptoms as you, but years ago. And, I had the muscle weakness first, then years later the dry eye. I have an appointment with Rheumatologist at Duke this summer for a Sjogrens eval. My labs are negative, but I haven’t had lip biopsy.

Years ago, my rheumatologist thought my muscle (stiff and weak) issues looked like polymyalgia rheumatica, but I was too young.

Do you treat your dry eye? I see a cornea specialist, as I also have Salzmann’s nodules. I do daily intensive treatment of warm compresses, scrubs, drops, and nightly ointment. I have also received relief from acupuncture.

I hope you can find some answers. It can be very stressful and painful,