Messy, I'm just going to say it - you are an AMAZING human. You are kind, diplomatic, intelligent and so incredibly thoughtful. You really have the biggest heartRulebreaker, I hope I'm not overstepping the mark by suggesting this - please forgive me if I am as my comment comes from the heart.
I wondered if you've tried reading to your sister while she's resting. Sometimes when you're really sick, you just want to close your eyes and rest but you don't want to be alone ... hearing a voice, especially that of a loved one, can mean so much. You could get a series of books, and just read to her. Liane Moriarty and Sophie Kinsella write great books.
How's your new job going?
@SnarkyTart I could really go for a picture of EL stepping in dog tit right now