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The symptoms you have described could be seen in lupus or other connective tissue diseases. Your ANA (antineutrophil antibody) is repeatedly positive. However, the ANA profile does not show any specific antibody. But that does not confirm that you cannot have a connective tissue disease (attachments removed to protect the patient’s identity).
Also, the history of miscarriages suggests that you may have the anti-phospholipid syndrome. To confirm, I am advising you on a few more tests like anti-cardiolipin IgG (immunoglobulin G), IgM (immunoglobulin M), lupus anticoagulant, and direct Coombs test.
Your CRP (C-reactive protein) is relatively high, which suggests ongoing inflammation. For symptomatic relief, I suggest you take tablet Prednisolone 10 mg once daily after breakfast and tablet HCQS 300 mg (Hydroxychloroquine) once at night after consulting with your primary physician. These medicines will help you with the symptoms. You might need some more medication according to your response to treatment.