I had internal tremors, along with intense itching and panic attacks. I thought it was from the steroid withdrawal, then when I started taking hydroxychloroquine I thought it was that. Finally diagnosed with depression and generalized anxiety disorder, which affects my daily life as much as lupus. I take several anti anxiety meds as well as antidepressants. You might look into that, even though mental illness issues aren’t seen in lupus often, they do occur. Good luck.