I have terrible dry eyes (MGD), a dry mouth, chronic postnasal drip (constant throat clearing and thick mucus in my throat, especially at night), an itchy red rash on my abdomen which is more or less constant, thinning hair at the front and I feel very tired a lot of the time. Obviously this could be many things but I want to see if I can get my GP to refer me to a specialist. What kind of specialist deals with diagnosis of SS (is it a rheumatologist)?