Hi Jynx and welcome! I am sorry to hear you've been having health problems for so long. The best place to start looking is here at Healing well, there is a post called resources. Another good site is
https://www.lupus.org , those are good places to start. Of course you will learn a lot by hanging out here and getting to know everyone. Lupus is different for everyone but there is bound to be someone here that shares some of your symptoms.
I hope your Rheumy is a good one and that your visit goes well. I know for me it took over a year to dx although I started having symptoms when I was a teen and I've seen 3 rheumy's. Some are not up to date on lupus therefore looks at things a lot differently. You have to remember lupus is hard to dx, it's like a big puzzle the doctor has to piece together over time and if your labs aren't positive it only takes more time, unless you have a great rheumy that knows to look in the gray area too. Make a list of all of your questions and symptoms and talk to your doctor about
each one of them, on a first visit the doc should take a lot of time with you, mine took 1 1/2 hours with me on the first visit and at least an hour each time I see her, which is every 4 months.
Are you on any meds to treat your lupus?
Hang in there and don't panic, don't expect the worse wait and see how your appt goes. Feel free to ask more questions. I am sure there will be others along shortly to offer some great advise! Take care