Yes, I get these stabbing pains too. At one point, my ANA was elevated and the doctors told me I have some kind of "Lupus-like syndrome" but I am convinced it is the Lyme/Bartonella I've since been diagnosed with.
My opinion is that, if Lyme infection came before the Lupus, that the Lupus is probably secondary to the Lyme and treating the Lyme is likely to significantly reduce the Lupus symptoms and may make the Lupus go away altogether (no guarantees, though).
Take care,
-Razzle
Chronic Lyme Disease, Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication/Chemical Allergies & Intolerances, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD ("Secondary Lupus-Like Syndrome"), Osteoporosis, Pancytopenia, chronic malabsorption/malnutrition, etc.; G-Tube; Currently TPN-dependent.
Meds: Zofran, Pulmicort, Heparin (to flush PICC line), Claritin, Colloidal Silver (used topically), IV Milk Thistle, probiotics.