<s>[INST] is it possible to have lupus and rheumatoid arthritis and fibromyalgia with symptoms of low grade fever for 2 months severe aches and pains throughout the whole body joint swelling and stiffness in areas that are red and warm to the touch that come and go? [/INST] His will suggest undergoing an arthritis profile test under a rheumatologist, like CRP, ASO, Rheumatoid factor, ESR,CBC, ANA,and Antioch to rule out or diagnose joint pains and swellings. Co-existence with fibromyalgia is possible, although lupus is rare and has presentation of redness of both cheeks and severe rash, so unlikely in your case, but rheumatoid or other forms of arthritis can be co-comitantAnyway, many medicines are there to treat, so no worry, consult a rheumatologistthanks </s>