I was just diagnosed recently. My body often feels like I have been beaten with a bat. My hips, shoulders, and arms are always aching. Some days are better than others. I get very tired very fast. Just six months ago I would get up every Saturday and clean my house one end to the other. Now I am lucky to sweep the kitchen and livingroom. It is a crazy condition with no rhyme or reason. Be there for your sister, don't toss the diagnosis to the wind. My sister's reply was "everyone has pain, just take ibuprofin", if only it was that easy.