Hi and welcome to WHL.
Since your diagnosis was just last week, I would try and trust the Rheumatologist.
How much prednisone are you taking?
I was diagnosed about 5 years ago and only had a little rash here or there, but never the butterfly rash. I am sun- sensitive, but not through the skin, I get nauseated, my joint pain increases, my brain fog gets worse and I get very fatigued.
Try and hang in there and let the rheumy figure this out.
The diagnosis is very scary and stressful in the beginning.
You are in good company, we will be here for you.
I may have been dealt a bad hand, but at least I'm still playing with a full deck. ( most of the time anyway).