Hi,my name is Sharon, I am 54 year old recently diagnosed with heart failure, my heart stops a beat, i also have fibromyalgia and OA, i was prescribed coreg cr and entresto. I have only been on it for 2 weeks and since i started taking it i have increased and severe muscle and joint pain in my neck, shoulders and hands and feet, and swelling in my hands. i am wondering if these meds are causing side effects. My fibromyalgia is not normally severe and i take flexiril for it and Tylenol. E Mail.. YYYY@YYYY