Don't play the google the illness game. If you really think you have lupus, get tested, but if you google illnesses, many of them fit partially whatever we're experiencing. To me, if all these are connected it's more likely thyroid than lupus, since you don't mention muscle weakness, but again, if you're really concerned, see a doctor.
I know someone with lupus and joint and muscle pain and extreme fatique are her most common complaints. Googling symptoms is never a good idea. I've allowed the internet to diagnose me with several diseases...that I didn't end up having. Its winter time and a lot of people have problems with dry scaly skin. The rest of the symptoms sound like anxiety. You should go to your doc and tell them your symptoms and let them test you for physical causes and if none can be found hook up with a therapist.