Welcome to WHL.
Most of your symptoms do sound like Lupus, but the only one who can determine that is a Rheumatologist. Sadly enough, even a Rheumatologist, has a hard time to find the right diagnosis, because there is not one specific test, that will clearly say, that it is Lupus.
Many of us here on WHL, had a long journey, to finally get diagnosed, some of them took years. That doesn't mean it will take years for you.
The dry eyes and mouth could be Sjogrens, which is like Lupus an autoimmune disease.
I think your next step should be to find a Rheumatologist and make an appointment asap., because it usually takes months, before you get an appointment.
If you have rashes or swelling, you should take pictures, so you can show them to the Rheumy, because many of us look fine on the day we actually see the doc.
Hope you will find answers soon.
I may have been dealt a bad hand, but at least I'm still playing with a full deck. ( most of the time anyway).