Hello! I'm so sorry you are still working on a diagnosis. I have lupus and went a similar route. I was diagnosed as early connective tissue disease in 2009 due to miscarriage, ANA, joint pain, fatigue, etc. In 2011, the psoriasis began and I was finally diagnosed with psoriatic arthritis. After many med changes, I landed on azathioprine which has fairly well controlled it and had to change rheumatologists who changed my diagnosis to lupus....although she says it could be a crossover of the two. I am also sun sensitive and get random mouth sores. I nap once a day if I possibly can. Also, my mom has lupus. Hold on. I know it's frustrating, but don't give up.