For the past 3 weeks I have been feeling fatigued, flu- like symptoms, chills that lasted 5-7 days. My ankles are extremely painful and Axillary lymps are painful to palpitation. I had blood work done. My ALT was 550 and AST 270. My CBC,EBV,Parvo,RA,Sed rate,Ferritin,CPk all were WNL. My Lipase was 108 and normal Amalyase. Going for a U/S and getting a Actin muscle bld. test tomorrow. What would be causing this