Rheumatologist will examine you, look at your hands, ask what your symptoms are. Then order bloodwork. Rheumatologist deals with Rheumatoid arthritis, Sjogrens, Lupus. If you have dry eyes, let me ask you this, how is your mouth, is it really really dry all the time? Sounds like they are leaning to Sjogren's. Have you had ANA and rheumatoid factor tested? Have you ever had butterfly rash on your face? Do you get joint pain? What type, is it bilateral, is it big joints, is it little joints, and any nodules on your fingers? These are all things they will probably ask you. Good thing is that if it is Sjogrens then you can get prescription eye drops to help with the dry eye, also prescription toothpaste to help with dry mouth. Good luck!