Cathie,
With Sjogren's, the mucus is thicker and doesn't drain well in the sinus/nasal area. And if you have pneumonia you probably have some mucus in the sinus/nasal area too. Use your sinus wash and see if this problem improves. And coughing could have detached the vitrious. At our age, it was probably ready to go anyway and you just hurried it up with the coughing.

You could do this while you are waiting on the call from the doctor.

Billye