Background info:
- I don't have Facebook
- I don't speak with my siblings/parents on a very regular basis; we're just not that close right now
- I am close with my in-laws, especially MIL

A few weeks ago, my MIL was watching my LO because she was sick. I received a text out-of-the-blue from my sister. She asked if my LO was sick. I said yes, why do you ask. She replied that she didn't look very good. I asked where she saw her. She said my SIL had posted a picture of her on FB. I asked what she was wearing in the pic, and my sister described the outfit I had dressed her in that day.

I was a bit upset. I just don't like the idea of everyone knowing my business all the time.

Thoughts?