Do I Need Time? First surgeon appoint today, surgery in 2 weeks!

Of course it matters. As you say she may just be scared stupid which doesn't help you. My brother went very quiet, but kept hassling me about what colour I wanted my bathroom painted - aaaaaarrrrrgggghhhh. But that was how he was coping. When I was told clear margins after surgery he burst out sobbing and then I realised how stressed he was and was keeping it all inside. I'm crossing fingers for you that your sister is in the same category and that she snaps out if it very very soon. Xx