Hi
The burning eyes might be Sjogrens. To reassure you, Sjogrens can be positive with negative blood tests. Mine were inconclusive, but they did a lip biopsy where was positive. I had severely dry mouth, dry eyes, and neurological issues. They take a little bit of skin off your lip and test it. If it is positive you probably have Sjogrens. You need to see a specialist, a rheumatologist who understands complex autoimmune conditions. Check out sjogrens.org for information.There is a lot of incorrect information out there about autoimmune diseases you should avoid.
Good luck
: )
I am so sorry you are having so many problems. I hope you find out what it is
Dee