I don't know what else you would need for a dx. My dr during a flare dx'd me with the same even though the Sjogren's was not positive. My rheumatoid is always highs. the new Tyrava nose spray is helping for the dry eye. Expensive. The drops are a bit tricky to administer bc I find the spray is hard to feel. My eyes are now more bothersome again especially to light.

Good luck! Hope you find what you need and feel better! We are about the same age....turn 70 in December. Sometimes a challenge in itself!