How would you differentiate Inflammatory myopathy, polymyalgia rheumatica, and fibromyalgia
inf. myo: Hx of weakness, PE shows proximal musc. weakness, Labs show elevated CK and ESR
Poly Rheum: Hx of proximal stiffness and pain, PE shows normal muscle strength, Labs show normal CK and elevated ESR
Fibromyalgia: Hx of diffuse pain, fatigue, sleep disturbance; PE shows paired tender points, normal muscle strength; Labs are normal.