Scared or what?

My birth family has started posting things on myfamily.com, photos and discussions etc. This is great because it allows me to peep around the curtains at them without having to go right out into the middle of the room. My sister sent me an email because she wants to talk to me more drectly. I want to talk to her too. But when she was on msn the other day, I couldn't do it. I don't know why. I sat in front of the computer and couldn't type anything. I bottled right out. No idea why. Am I scared? What of?