Sister Girl's in her bed crying because "the pain in her legs has gotten so bad" (I'm not sure what this is about, but the phrasing sounds like it's a chronic condition--from standing on her feet at work all day?) and she feels "really really hot, but really really cold at the same time." The latter indicated fever to me, so I went and got Advil (which, actually, is all we have on hand, I think). Is there something obvious I should do for her that I'm overlooking? I told her I'd check on her in half an hour.