It just keeps on coming for you. Just take deep breaths, breathe through your nostrils and count to ten every time the other sister talks to you, smile and act vague as if you are on new medication that's made you a little hazy and if possible give a little giggle every now and then. Do not let her get under your skin, with the tooth, nana and your pain levels you have more than enough on your plate without having to deal with her. We are here for you so feel free to vent.