I don't use Facebook often, Carmina, so unfortunately I don't have a lot of advice to give to you. Hopefully others will correct me if I'm wrong, but yes, I do believe that friends on Facebook can see everything you do, so yes, I'd suggest to be careful about who you add. I believe a simple Google search should be enough to have an answer to your question, though. Uusally this kind of thing is pretty well-known if it happens, especially on a big site like Facebook. Sending many hugs to you, Carmina