Well, since you have dry eyes, ears and nasal passages, there is a possibility that you are suffering from Sjogren’s syndrome. This is an autoimmune disease attacking
the moisture producing glands
of the body. If at all it is Sjogren’s Syndrome, you may find useful information on this link: http://www.ninds.nih.gov/disorders/sjogrens/sjogrens.htm
I would strongly recommend you to consult an internal medicine specialist. It is difficult to comment beyond this at this stage.